Select the option that is related to the third number in the same way as the second number is related to the first number and the sixth number is related to the fifth number.$12:153::17:?::14:205$

Let's look for a mathematical rule connecting the pairs:First Pair: 12 : 153$12^2=144$ To reach 153: $153-144=9$ So, the pattern could be ${\text{Number}}^2+9$.Third Pair: 14 : 205$14^2=196$ To reach 205: $205-196=9$ This confirms the rule is consistently ${\text{Number}}^2+9$.Now let's apply this exact rule to the middle term with $17$:
$$\text{Missing Number}=17^2+9=289+9=298$$