Sentence Correction (SC) | Re: Sentence Correction

Coffee prices rose sharply Monday, posting their biggest one-day gain in almost three years, after a weekend cold snap in Brazil raised concernthat there could be damage to the world’s largest crop when at a time with supplies already tight.

A. that there could be damage to the world’s largest crop when at a time with supplies
B. that the world’s largest crop could be damaged at a time such as when supplies are
C. that the world’s largest crop could be damaged at a time when supplies