50. Which of these reactions will give a carboxylic acid as a major product? (A) (B) (C) (D) (E)

2. Physostigmine is used in the treatment of glaucoma. Within this structure, the atom indicated by is most basic, while atom is least basic. (A) 1 (most basic), 4 (least basic) (B) 1 (most basic), 3 (least basic) (C) 2 (most basic), 4 (least basic) (D) 2 (most basic), 3 (least basic) (E) None of the above.