Select the option that expresses the given sentence in indirect speech.
“We must be vigilant. Our teacher never accepts the assignment if any one of us is late in submission”, Ramesh said to his friend.

Ramesh said his friend that they must be vigilant as our teacher never accepted the assignment if any one of them was late in submission.

Ramesh told his friend that they must be vigilant as their teacher never accepted the assignment if any one of them was late in submission.

Ramesh said to his friend that we must be vigilant as their teacher never accepted the assignment if any one of them was late in submission.

Ramesh told his friend that we must be vigilant as their teacher never accepted the assignment if any one of them was late in submission.