Read the following context and choose the best option to answer the question.
Context: Log a call to have my keyboard replaced . The guy wanted me to run a diagnostic to see if it 's a software problem ... . Honestly , at this point I could n't help myself , and I started laughing ! The key is stuck !
Question: What may be a reason why they laughed ?
Options: 
A. Because they tried that already .
B. Because they could n't understand what was said .
C. Because the suggestion was ridiculous .
D. Because they did n't want to cry .


C