Select the option that is related to the third term in the same way as the second term is related to the first term.

H18J : J22L :: P34R : ?

The logic here is

H18J $$\longrightarrow\ $$  H + 2 = J  and  H + J = 18

J22L $$\longrightarrow\ $$  J + 2 = L  and  J + L = 22

The first letter of second term is the second letter of first term. Similarly, the first letter of fourth term should be the second letter third term.

$$\Rightarrow$$ First letter of fourth term = Second letter of third term = R

Using the above logic,

R + 2 = T   and   R + T = 38

Second letter of fourth term = T

Number in the middle of fourth term = 38

$$\therefore\ $$R38T is related to P34R in the same way J22L is related to H18J

Hence, the correct answer is Option A