Multi-choice problem: Continue writing the next sentence in this paragraph:

A woman is ironing a shirt on a board. She plugs the iron in and turns the knob. She pours water into the iron. she

Options are:
 a). starts ironing the shirt and hangs it on a hanger.;
 b). then covers it with tape.;
 c). flips it to hot.;
 d). irons for awhile and adds a towel to the iron.;
a).