Select the option that is related to the fifth letter cluster in the same way as the second letter cluster is related to the first letter cluster and the fourth letter cluster is related to the third letter cluster. $$\text{CURTAIN: RUCTNIA :: SUPPOSE: PUSPESO :: TONIGHT:?}$$

Let's check the rearrangement logic of letter indices:For CURTAIN $\to$ RUCTNIA:$1^{\text{st}},2^{\text{nd}},3^{\text{rd}},4^{\text{th}}$ letters (CURT) are rearranged as reversed pairs: $(C,U)\to (R,U,C,T)$? No, let's look closer:$C(1)U(2)R(3)T(4)\to R(3)U(2)C(1)T(4)$$A(5)I(6)N(7)\to N(7)I(6)A(5)$ Let's see an easier segment swap pattern:Divide the 7-letter word into 3 parts: indices [1,2,3], [4], [5,6,7]$\text{C U R}\to \text{R U C}$ (reversed)$\text{T}\to \text{T}$ (remains same)$\text{A I N}\to \text{N I A}$ (reversed)Result: RUCTNIA.Let's verify with SUPPOSE $\to$ PUSPESO:$\text{S U P}\to \text{P U S}$ (reversed)$\text{P}\to \text{P}$ (remains same)$\text{O S E}\to \text{E S O}$ (reversed)Result: PUSPESO.Applying the same rule to TONIGHT:$\text{T O N}\to \text{N O T}$ (reversed)$\text{I}\to \text{I}$ (remains same)$\text{G H T}\to \text{T H G}$ (reversed)Result: NOTITHG.