Friedel Crafts acylations also can be carried out with acid anydrides, rather than acid halides.The generalized equation is shown below.

Friedel Crafts acylations also can be carried out with acid anydrides, rather than acid halides. The generalized equation is shown below. Can you apply it to a specific case, the reaction of benzene with succinic anhydride? Draw the product(s) and select the best answer:
A. There are two products, both of which contain benzene rings
B. There are two products, a ketone and a carboxylic acid
C. There is only one product, which is both an ether and a carboxylic acid
D. There is only one product, which is a ketone
E. There is only one product, which is both a ketone and a carboxylic acid