Consider the following reaction:Which response contains all the correct statements about t...

Consider the following reaction:

Which response contains all the correct statements about this process and no incorrect ones?

1. Dehydration

2. E2 mechanism

3. Carbon skeleton migration

4. Most stable carbocation forms

5. Single-step reaction

(a) 1, 3

(b)     1, 2, 3

(c)     1, 2, 5

(d) 1, 3, 4