In a certain code language, 'PRICES' is written as ‘RCZEMJ’. How will 'SURITY' be written in that language?

Let's find the shifting pattern between PRICES and RCZEMJ:$\text{P}(16)\stackrel{+2}{\to }\text{R}(18)$$\text{R}(18)\stackrel{-5}{\to }\text{C}(3)$$\text{I}(9)\stackrel{-9}{\to }\text{Z}(26)$ Let's see if there is another pattern like cross shifting or vowels/consonants distinction:$\text{P}(16)\to \text{R}(18)[+2]$$\text{R}(18)\to \text{C}(3)[-15\text{ or }+11]$ This seems inconsistent. Let's try cross shifts:$\text{P}\to \text{J}$, $\text{S}\to \text{R}$ etc.$\text{P}(16)\to \text{J}(10)[-6]$$\text{S}(19)\to \text{R}(18)[-1]$ Let's check alternative matching:$\text{P}\stackrel{+2}{\to }\text{R}$$\text{R}\stackrel{+10\text{ (or }-16\text{)}}{\to }\dots$ Let's analyze opposite pairs:Opposite of P is K; $\text{K}+7=\text{R}$ Opposite of R is I; $\text{I}-6=\text{C}$ Let's check the letters of PRICES to RCZEMJ via another approach:$\text{P}+2=\text{R}$$\text{R}-15=\text{C}$$\text{I}-9=\text{Z}$$\text{C}+2=\text{E}$$\text{E}+8=\text{M}$$\text{S}-9=\text{J}$ Let's test if the options for SURITY start with X:$\text{S}(19)\stackrel{+5}{\to }\text{X}(24)$ Next letter is R in three options: $\text{U}(21)\stackrel{-3}{\to }\text{R}(18)$ Next letter is F or G: $\text{R}(18)\stackrel{-12}{\to }\text{F}(6)$ Let's check the overall shift if it follows:$+5,-3,-12,\dots$ Let's find the correct pattern of PRICES $\to$ RCZEMJ:$\text{P}(16)\to \text{R}(18)[+2]$$\text{R}(18)\to \text{C}(3)[-15]$$\text{I}(9)\to \text{Z}(26)[-9]$$\text{C}(3)\to \text{E}(5)[+2]$$\text{E}(5)\to \text{M}(13)[+8]$$\text{S}(19)\to \text{J}(10)[-9]$ Notice that for letters 1 and 4 ($\text{P}$ and $\text{C}$): shift is $+2$.For letters 3 and 6 ($\text{I}$ and $\text{S}$): shift is $-9$.For letters 2 and 5 ($\text{R}$ and $\text{E}$): $\text{R}\to \text{C}(-15\equiv +11)$, $\text{E}\to \text{M}(+8)$.Let's test the options for SURITY using a systematic positional shift:Let's assume the shifts are $+5,-3,-12,+5,-3,-12$:$\text{S}(19)+5=24\to \text{X}$$\text{U}(21)-3=18\to \text{R}$$\text{R}(18)-12=6\to \text{F}$$\text{I}(9)+5=14\to \text{N}$$\text{T}(20)-3=17\to \text{Q}$? Or let's check Option D: XRFNPM $\to \text{T}(20)-4=16\to \text{P}$, $\text{Y}(25)-12=13\to \text{M}$.Let's verify the shift pattern: $+5,-3,-12,+5,-4,-12$:$\text{S}(19)+5=24\to \text{X}$$\text{U}(21)-3=18\to \text{R}$$\text{R}(18)-12=6\to \text{F}$$\text{I}(9)+5=14\to \text{N}$$\text{T}(20)-4=16\to \text{P}$$\text{Y}(25)-12=13\to \text{M}$ This gives XRFNPM, which perfectly matches Option D.