Your Father Was Recently Prescribed an Anticoagulant Medicine and Was

Your father was recently prescribed an anticoagulant medicine and was surprised that the doctor advised him to maintain consumption of consistent amounts of green leafy vegetables every day. You provide your father which of the following explanations?

A) These vegetables significantly reduce absorption of the drug.
B) These vegetables significantly increase absorption of the drug.
C) Variable intake of green leafy vegetables will affect activity of monoamine oxidase inhibitors.
D) Inconsistent intakes of green leafy vegetables will interfere with the regular action of the drug.