SAT sentence error correction help?

Question

1. [a. Like his other] cookbooks, in his new book Chef Louis offers lengthy explanations [b. of what] [c. he considers] [d. to be] basic cooking principles. [e. no error]

2. [a. In] swimming [b. as to] soccer, Evangelina proved time after time to be an [c. abler] competitor [d. than] Juanita. [e. no error]

3. The common cold is [a. one of our most] indiscriminate diseases; [b. it makes] no [c. distinction between] [d. you and me], millionaires and paupers, or athletes and couch potatoes. [e. no error]

and please explain why, thanks.

Answer 1

1. a it's more proper to have it read As with his previous cookbooks

2. b  where's the comparison? it should say And

3. c should be Among, between is for two, among for three from what I remember about English usage.

Answer 2

1.e

2. in swimming and soccer, evangelina proved time after time to be a more able competitor than juanita.

3.e.

-blurey