Hey there.
When finding the probability of two separate items, such as dice, you want to multiply each individual probability as fractions.
If one asks for the probability of a 2, then that's 1/6 as there are 6 numbers (1-6) on a dice. The other asks for a 5, which is still 1/6. Now, we need to multiply each probability fraction.
1/6 * 1/6 = 1/36
Your answer is D.)
I hope this helps!