Brief means a very short and precise knowledge about something. Therefore, short is the best suited word.

Vent means an opening in houses or rooms used to allow air or gas. Therefore, opening is the best suited option.

August was the former emperor of Rome, and it states respect and impression.

Alert means to be cautious, therefore, the best suited option is watchful.

Distant means the places or anything which is far away from us, therefore, the best suited option is far.

Fake is used for things or people who are not original, therefore, the only word that expresses the meaning is “Imitation.”

The word indict means to accuse someone for a crime and charge for the same. Option A gives the best suited meaning for the given word.

Stringent means to demand strict attention for the set rules and procedures, therefore, the best option available here is Rigorous.

Lament means to cry in sorrow or bewail. Therefore, the most suitable option is grief.

Hesitation occurs when someone stops while talking or gets nervous and pause for a while.

Attempt is to try something. Therefore, the most suitable option is try.

The word reckless means to act or react without keeping in mind the possible reasons. Therefore, rash is the suitable option.