Two fluids with two different densities $($r$1>$ r $2)$ are

added to a U$-$shaped tube. The right branch of the tube is

open to the air. The left branch is sealed, and a pump is used

to decrease the pressure to a value smaller than atmospheric

pressure.

What is the relationship between the pressure at points $1$ in

Fluid $1($P$1)$ and $2$ in Fluid $2($P $2)?$

A$.$ Not enough information to determine as the values of

r$1$ and r$2$ are not given.

B$.$ P$2<$ P$1$

C$.$ P$2=$P$1$

D$.$ Not enough information to determine as pressure in the left branch is not given.

E$.$ P$2>$ P$1$