Help me out with this question and the best answer will get brainliest. No links, please. Full explanation with the work as well, thank you.

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.

the answer is:

the correct option is the option b.

to calculate the surface area of the right cylinder, we need to use the following formula:

from the picture we know that:

so, substituting and calculting we have:

hence, we have that the correct option is the option b.

have a nice day!