$1)$

The legal issue in this case is $$discrimination based on Sex$.$

$$Equal opportunity act$$ and $$Title VII of US constitution$$: Making discriminations among people on the basis of their race, color, religion, sex, or national origin is illegal and is a criminal offence.

The court granted summary judgment to the Heartland because the Heartland stated a legitimate and nondiscriminatory reason for the termination of the lady. There were no direct evidence to prove the lady$$s case.