Which of the following is a form of birth control?

Yasmin is a form of birth control because it is an oral contraceptive that contains hormones (estrogen and progestin) which prevent ovulation, regulate menstrual cycles, and can also help manage other hormonal issues. Birth control pills like Yasmin work by inhibiting the body's natural hormonal signals that lead to ovulation.

Diabeta, Lasix, and Amaryl are not forms of birth control. Diabeta is used to manage blood sugar levels in individuals with type 2 diabetes. Lasix is a diuretic used to help prevent the body from absorbing too much salt, thereby allowing for the removal of excess fluid. Amaryl is also used to treat type 2 diabetes by stimulating insulin release from the pancreas. Each of these medications serves specific therapeutic purposes unrelated to birth control.