A U-tube of uniform cross-section shown in figure is partially filled with liquid Igt Another liquid II which does not mix with I is poured into one side. The liquid levels of the two sides is found the same, while the level of liquid I has risen by 2 cm. If the specific gravity of liquid I is 1.1, then specific gravity of liquid II must be
A. 1.2
B. 1.1
C. 1.3
D. `1.0`
