Read the passage.

Be still, sad heart! and cease repining;
Behind the clouds is the sun still shining;
Thy fate is the common fate of all,
Into each life some rain must fall,
Some days must be dark and dreary.

The tone of the poem is comforting. Which mood is suggested by the details of the poem?
A. Restful
B. Hopeful
C. Excited
D. Depressed
(I wanna say that its restful or hopeful, because they give a hint in the question that says "The tone is comforting.")