When an objection is made by the prosecuting attorney to a question asked by the defense attorney during cross examination of the police officer, which of the following correctly states what the police officer should do$?$

Question $3$ options:

a$)$

Wait for the defense attorney to explain the objection fully before answering the question $.$

b$)$

Look to the prosecuting attorney for a signal to proceed with the answer.

c$)$

Answer the question immediately before the defense attorney must repeat it$.$

d$)$

Wait for the judge to rule on the objection before answering the question.