Consider the diffraction pattern for a small pinhole. As the size of the hole is increased:

(a) the size decreases
(b) the intensity increases
(c) the size increases
(d) the intensity decreases

Choose the correct option from the given ones:
1. (a) and (b) only 2. (a) and (c) only
3. (b) and (d) only 4. (c) and (d) only