The structure of Penicillin V is shown below. Which one of the following statements about Penicillin V is CORRECT? a. The molecule contains amide, carboxylic acid and ether groups and has three chiral centres. b. The molecule contains amine, carboxylic acid and ketone groups and four chiral centres. c. The molecule contains alcohol, amine and ether groups and has five chiral centres. d. The molecule contains aldehyde, amine and ether groups and has six chiral centres. e. The molecule contains alcohol, amine and ketone groups and has no chiral centres