A nurse is providing teaching for a client who has diabetes and a new prescription for insulin glargine. Which of the following instructions should the nurse provide regarding this type of insulin?

Insulin glargine is a long-acting insulin with a duration of action of approximately 18 to 24 hours. This type of insulin provides a steady level of basal insulin over an extended period, making it ideal for maintaining blood sugar levels between meals and overnight. Option A is correct because it accurately reflects the duration of action of insulin glargine. Options B, C, and D are incorrect as they provide inaccurate information about the duration of action, which may lead to incorrect dosing and potential complications for the client.