I feel as if I'm being d#mb asking this question but I can't seem to understand a word the poem says. What is the tone of the poem “The Sick Rose” by William Blake?

O rose, thou art sick!
The invisible worm,
That flies in the night,
In the howling storm,

Has found out thy bed
Of crimson joy,
And his dark secret love
Does thy life destroy.

A.
apologetic
B.
concerned
C.
happy
D.
admiring