Give an appropriate systematic name for each of the structures shown below.

• A. (i): trinitrobenzoic acid(ii): 1-carboxyl-4-methylpentan-3-one
• B. (i): 2,3,4-trinitrobenzoic acid(ii): 5-methyl-4-oxohexanoic acid
• C. (i): 2,3,4-trinitrobenzoic acid(ii): 5-carboxyl-2-methylpentan-3-one
• D. (i): 4,5,6-trinitrobenzoic acid(ii): 1-carboxyl-4-methylpentan-3-one

Answer: (B)