Answer:
C.
Step-by-step explanation:
A slant rhyme is also known as a half rhyme, a near rhyme, and a lazy rhyme. Rhymes of this nature either share the same vowels or consonant sounds. It is not a perfect rhyme, which has identical stressed vowels and consonants.
Choice A rhymes the words desk and statuesque. This is a perfect rhyme.
Choice B rhymes the words weight and straight. This is a perfect rhyme.
Choice C rhymes the words tenth and month. This is NOT a perfect rhyme. Both of these words end with identical consonant sounds; "th." This makes it a slant rhyme.
Choice D rhymes the words balloon and croon. This is a perfect rhyme.