When oxygen is added to the rat's environment it's behavior changes. is this cause and effect?

Which sentence has an adjective clause? a.mike rode his bike on mountain trails because he found them challenging.b.gary donated to charity whenever he could.c.liz,who could always make people laugh,was loved by the whole block.d.ever since adam was a little boy,he had his father in the fields

Eating while you drive a.increases your risk of being involved in a collision b.is only risky with heavily packaged foods c.should only be done with food that can be handled easily

The story behind the story is a a human interest article b concerned with the feelings of people involved in a headline event ca kind of special feature d all of these e none of these