The tyoe of rethorical device used here is consonance. Option C is correct
Consonance refers to a stylistic literary device characterized by the repetition of identical or similar consonants in neighbouring words whose vowel sounds are different. Consonance may be considered as the counterpart to the vowel-sound repetition known as assonance.
An example of consonance is alliteration. In alliteration, the repeated consonant sound is at the stressed syllable.