Error Spotting - Subject Verb — Set 5

The variety of options available to customers make this store popular.

Neither boys nor girls are excluded from participating in the sports day.

A series of unfortunate events were responsible for the accident.

The orchestra and the choir has collaborated on several musical productions.

There was several reasons given for the cancellation of the event.

Every one of the scientists agree that the hypothesis is valid.

The battalion of soldiers were marching towards the border.

The jury members has been deliberating since this morning.

Neither option nor suggestion are implemented without thorough discussion.

The number of students enrolled in the program have increased significantly.