I believe the answer is A
To reserve something is to set aside
Ex: "I reserved that hotel room."
I suppose it would be B as a storm would wash away the footprints and all of the evidence, even the scent possibly.
I believe it is D. a new room will be automatically added to the table
Answer:
Born: November 20, 1923, Springs, Transvaal, Union of South Africa
Explanation: