Which of the following sentences is grammatically correct?

The manager and the assistant manager make the decisions.

The manager and the assistant manager makes the decisions.

The manager and the assistant manager making the decisions.

The manager and the assistant manager are making the decisions.

The company, along with its subsidiaries, are a major player in the industry.

The company, along with its subsidiaries, is a major player in the industry.

The company, along with its subsidiaries, have a major player in the industry.

The company, along with its subsidiaries, has a major player in the industry.

The majority of the students in the class are attending the lecture.

The majority of the students in the class attend the lecture.

The majority of the students in the class attends the lecture.

The majority of the students in the class is attending the lecture.

The news of the accident has been shocking to everyone.

The news of the accident have been shocking to everyone.

The news of the accident is shocking to everyone.

The news of the accident are shocking to everyone.