Read the following article and answer the question by choosing from the options.

I ask how much , and the guy says the diagnostic fee is about 36 bucks . So , they get my car , and I go have lunch at the Denny 's next door . Afterwards , I went for a short walkabout on the car lot , and then went into the sitting room . A few minutes later they call me in , because it was done .

What may be the thing I am getting fixed ?
Pick from: (1). My computer (2). My motorcycle (3). My refrigerator (4). My car...A:
(4).