A Client with Diabetes Is Prescribed Insulin Glargine Once Daily

A client with diabetes is prescribed insulin glargine once daily and regular insulin four times daily.One dose of regular insulin is scheduled at the same time as the glargine.How does the nurse instruct the client to administer the two doses of insulin?

A) "Draw up and inject the insulin glargine first, then draw up and inject the regular insulin."
B) "Draw up and inject the insulin glargine first, wait 20 minutes, then draw up and inject the regular insulin."
C) "First draw up the dose of regular insulin, then draw up the dose of insulin glargine in the same syringe, mix, and inject the two insulins together."
D) "First draw up the dose of insulin glargine, then draw up the dose of regular insulin in the same syringe, mix, and inject the two insulins together."