Final answer:
The association between antihypertensive medications and gynecomastia is complex and specific to certain drugs rather than a general side effect of all blood pressure medications. Some antihypertensives, like particular ß-blockers or spironolactone, may cause hormonal imbalances leading to gynecomastia.
Step-by-step explanation:
The correct statement that describes the cause of enlarged breast tissue, or gynecomastia, in a male patient on antihypertensive medication is not provided in the options above. While it is true that some medications can cause side effects that include gynecomastia, this is not a common side effect of all antihypertensive medications. Gynecomastia can be associated with certain drugs, including but not limited to anti-hypertensives like spironolactone, which is a potassium-sparing diuretic, or some ß-blockers if they have intrinsic sympathomimetic activity. These drugs may interfere with hormone levels or receptor activities, potentially leading to gynecomastia.