Read the following article and answer the question.

These days , keyless entry generally involves a wireless remote either built into the key ( my Honda ) or as a separate key fob ( my mom 's Camry ) . At some point , Mercury added that feature to the Grand Marquis , but in 1992 it involved a five - button keypad on the door . ( Newer ones still have the keypad , in addition to the remote . ) This means that I can leave the keys in the ignition when I go to the grocery store , thus eliminating that unsightly bunch - of - keys bulge in my pocket .

How might keyless entry be helpful for me ?
None of the above choices .