In certain code language, 'VARIOUS' is coded as '519812254418'. How will 'PENSION' be coded as in that language?

Given, VARIOUS is coded as 519812254418 in the code language

The logic here is

V opposite is E $$\longrightarrow\ $$ E = 5 $$\longrightarrow\ $$ V code is 5

A = 1 $$\longrightarrow\ $$ A code is 1$$^2$$ = 1

R opposite is I $$\longrightarrow\ $$ I = 9 $$\longrightarrow\ $$ R code is 9

I = 9 $$\longrightarrow\ $$ I code is 9$$^2$$ = 81

O = 15 $$\longrightarrow\ $$ O code is 15$$^2$$ = 225

U = 21 $$\longrightarrow\ $$ U code is 21$$^2$$ = 441

S opposite is H $$\longrightarrow\ $$ H = 8 $$\longrightarrow\ $$ S code is 8

For consonants, opposite letter place value is coded and for vowels, square of the place value of the vowel is coded.

Similarly,

P opposite is K $$\longrightarrow\ $$ K = 11 $$\longrightarrow\ $$ P code is 11

E = 5 $$\longrightarrow\ $$ E code is 5$$^2$$ = 25

N opposite is M $$\longrightarrow\ $$ M = 13 $$\longrightarrow\ $$ N code is 13

S opposite is H $$\longrightarrow\ $$ H = 8 $$\longrightarrow\ $$ S code is 8

I = 9 $$\longrightarrow\ $$ I code is 9$$^2$$ = 81

O = 15 $$\longrightarrow\ $$ O code is 15$$^2$$ = 225

N opposite is M $$\longrightarrow\ $$ M = 13 $$\longrightarrow\ $$ N code is 13

$$\therefore\ $$PENSION is coded as 11251388122513 in the code language.

Hence, the correct answer is Option C