[Q]: The doctors amputated the patient's leg.

cause: 

OPTIONS:
- It was badly bruised.
- It was severely infected.
[A]: It was severely infected.
[Q]: The leader received praise.

cause: 

OPTIONS:
- He fought poverty.
- He raised taxes.
[A]: He fought poverty.
[Q]: The bananas ripened.

effect: 

OPTIONS:
- We squeezed them.
- We ate them.
[A]: We ate them.
[Q]: The motorcyclist twisted the throttle.

effect: 

OPTIONS:
- The motorcycle coasted to a halt.
- The motorcycle shot forward.
[A]:
The motorcycle shot forward.