Select the option that is related to the third term in the same way as the second number is related to the first term.
SHOES : 19815519 :: SHIRT : ?

Given: SHOES : 19815519

Logic:  the position of each letter in the alphabet:

S = 19, H = 8, O = 15, E = 5, S = 19.

So, "SHOES" corresponds to the number 19815519.

The number 19815519 can be broken down as:

19 (S), 8 (H), 15 (O), 5 (E), 19 (S).

As the Similarly: "SHIRT" $$\rightarrow$$ ?​

S = 19, H = 8, I = 9, R = 18, T = 20.

Thus, "SHIRT" corresponds to 19891820.

Thus, the correct answer is option (d) 19891820.