Given a sentence containing a mention of substance use, consider the following categories:

A: This category refers to a patient who is currently using the substance or has used it within a short timeframe before the time of the sentence.

B: This category refers to a patient who has used the substance in the past, but there is no indication in the sentence whether they are still using it or not.

C: Patient explicitly denies using the substance or there is a discussion of the substance being present, but there is no indication that the patient has used or is using it.

D: Discussion about a substance or someone else's use of the substance, where there is no indication that the patient has used or is using it themselves.

Given the sentence “He has been using leave to go for cigarettes” How would “cigarettes” be classified?