Unpolarized light of intensity $I_0$ is incident on surface of a block of glass at Brewster’s angle .In that case, which one of the following statement is true ?

Reflected light is partially polarized with intensity $\frac{I_0}{2}$

Transmitted light is completely polarized with intensity less than $\frac{I_0}{2}$

Reflected light is completely polarized with intensity less than $\frac{I_0}{2}$   

Transmitted light is partially polarized with intensity $\frac{I_0}{2}$