It's D. The answer is D. Your welcome
The use of vague language allows them to say things in a very generic way so that they can account for what they say, any more precise language can become compromising for them as they will be asked in the future to account for what they said, so a sentence like "we will do our best to erradicate corruption" is vague and if a politician is asked to account for this they can say "well, we have been doing our best but it is not easy", now if they say "we will erradicate corruption in our government within the next three years." people can ask them to account for these exact words.
Answer:Doctor job
Doctor is the person who treats people when they are ill and give them right suggestion to get well soo. The doctor works at the hospital ,heath post , clinic ,etc.To get the job of doctor they should have four years training as well as specialized in particular sectors and at least bachelor degree after completing 10±2 level. And for the treatment of patient not only doctor is need for the treatement others health workers are also compelsorly needed .Teamwork is mainly needed otherwise treatement is not possible.
Thank you i hope this answer may help you.