Aclient with type 2 diabetes, who is taking an oral hypoglycemic agent, is to have a serum glucose test early in the morning. the client asks the nurse, “what do i have to do to prepare for this test? ” which statement by the nurse reflects accurate information? (a) "eat your usual breakfast."(b) "have clear liquids for breakfast."(c) "take your medication before the test."(d) "do not ingest anything before the test."