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. hough he stoutly persisted in denying his involvement in the case,
• B. he facts made it very clear
• C. hat he had hand in the cruel murder of his wife
• D. o error