Which pair of lines in william shakespeare's sonnet 116 uses slant rhyme?

(a) let me not to the marriage of true winds

(b) admit impediments. love is not love

(c) which alters when it alteration finds

(d) or bends with the remover to remove

(e) love's not time's fool, though rosy lips and cheeks

(f) love alters not with his brief hours and weeks

B and D

Explanation:

Lines A and C use perfect rhyme (minds - finds), and so do lines E and F (cheeks - weeks).

The rhyme in the pair of lines B, D is formed by words with similar but not identical sounds. In the words love and remove, the final consonants are identical but the vowels sound different. That is why this type of rhyme is called slant thyme, or half rhyme.  

the tone of the passage is sympathetic to the forbidden love of romeo and juliet. the nurse plays a significant role in the play. she is responsible for making their meeting again possible. additionally, there is a sense of warning in the choice of words of the nurse. she seems to be authoritative when she calls romeo "scurvy knave", and at the same time the fact that she addresses to him as "sir" reflects respect. the nurse is "vexed", this word describes her confused state of mind. on the one hand, she finds romeo a fine and eloquent man, but on the other, it is thought that man's nature forces men to try to trick women.