Find out whether there is any grammatical error in below sentence.
Though he stoutly persisted in denying his involvement in the case, / the facts made it very clear / that he had hand in the cruel murder of his wife.

A. Though he stoutly persisted in denying his involvement in the case,

B. the facts made it very clear

C. that he had hand in the cruel murder of his wife

D. No error

Answer: Option C

Solution(By Examveda Team)

that he had involved in the cruel murder of his wife.