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 worked for hours to clean the carpet with his vacuum, but the _ didn't work. (A) carpet (B) vacuum
B

In order to call his mom, he bought a landline and cell phone. The _ was more beneficial because it was mobile. (A) cell phone (B) landline
A

Natalie was trained and very good at giving commands unlike Tanya, due to _ being a leader. (A) Natalie (B) Tanya
A