In the Molecular Orbital Model of Cyclobutadiene,how Many $\pi$ -Antibonding Molecular Orbitals Are There?
A)5
B)4
C)3
D)2
E)1

In the molecular orbital model of cyclobutadiene,how many $\pi$ -antibonding molecular orbitals are there?

A) 5
B) 4
C) 3
D) 2
E) 1