Figure shows a balanced Wheatstone's bridge

(1) If P is slightly increased, the current in the galvanometer flow from A to C.
(2) If P is slightly increased, the current in the galvanometer flows C to A.
(3) If Q is slightly increased, the current in the galvanometer flows from C to A.
(4) If Q is slightly increased, the current in the galvanometer flows from A to C.

Options

A. 1, 2 and 3 are correct
B. 3 and 2 are correct
C. 4 and 4 are correct
D. 3 and 3 are correct