A tube `1 cm^2` in cross- section is attached to the top of a vessel 1 cm high and of cross - section 100 `cm^2` Water is poured into the system filling it to a depth of 100 cm above the bottom of the vessel as shown in fig. Take g =10 `ms^(-2)` .
A. 1000 N
B. 990 N
C. 900 N
D. 100 N