Adiesel mechanic is what type of career (a) hospitality (b) mobile maintenance (c)

The answer is B and not D, read below why D is incorrect and why B isn't.

My fella below me answered this question incorrectly. Mobile maintenance is anything that a mechanic would do or someone who works with engines, vehicles and other things similar to this. I do not understand why you gave him brainliest when the question was answered incorrectly. However, you may be wondering what an engineer does, if this career is not engineering. An engineer can work with architects and many other careers that involve building or designing things. They solve problems, such as : An architect might be trying to figure out where he/she can put something such as a closet in a house if there is no space. The engineer might say "well if we cut into the space of the room next to it, we can fit a small 3 x 3 closet in this room" even though architects also do this, too. Sorry if my explanation was a little weird with the engineer part, but I can guarantee you that THE ANSWER IS B AND NOT D, I have just taken the test and got the answer correct. Not to be rude, but the answer below/above me is incorrect and they didn't really explain why it was correct but people followed them and fell blindly into his wrong answer. You can fact check my answer but please believe me when I say B is the right answer. Do not select D in your tests. Thank you! have a good day!

ya the other guy is correct i just got a 100% on my test.

Explanation: