Identify the Part of Speech of the Between Brackets Words

Short Answer

Identify the part of speech of the between brackets words:
a. At 2300 hours, (the) officer placed the suspect under arrest.
b. I received a radio call of a suspicious person (at) 2200 Main Street.
c.( I) noted that there was damage to the rear driver's side door.
d. The suspect (said) that he did not own the car.
e. Thompson stated that he was going to turn himself in (on) Thursday.