In this task, you are given a question containing a blank (_) and two options. You should pick the best option to answer the question. Please answer with "A" or "B".

The man took muscle relaxant medicine to prepare himself for the colonoscopy procedure, because the _ was invasive. (A) procedure (B) medicine
A

It was easy for Samantha but not Rachel to pass the class because _ took all the necessary steps to study and complete assignments. (A) Samantha (B) Rachel
A

Rachel included Tanya in her YouTube video, but _ was sorry because she had failed to obtain permission. (A) Rachel (B) Tanya

A