Multiple Choice

What is this scene about?
a) I went to a trip to stay away from research for a while and David my friend happened to be there.
b) Me and my friend (David) went fishing together and we are not sure if we are good fishermen.
c) During my trip I happened to take the picture of a guy named David and he is not so happy about the result.
d) Our vehicle research team went on a one day trip to test our planning algorithms on an autonomous underwater vehicle. David is thinking about how to sustain 1:30 driving towards Boston after the morning drive and the long day of testing and programming.