Consider the following statements
In an epicyclic gear train with 96 and 36 number of teeth on the annulus and sun respectively
1. Planet must have 30 teeth
2. There must be 3 or 4 planets around the circumstance
3. Planets can never be input or output links.
4. Planets of the sun should be more than the rest
Which of these statements are correct?
(a) 1, 2, 3 and 4 (b) 1, 3 and 4 only
(c) 1, 2 and 3 only (d) 2, 3 and 4 only