The correct answer is: C. will give
The invigilator is the person who is in charge of the exam. They are responsible for making sure that the exam is conducted fairly and that all students follow the rules. The invigilator will give the question papers to the students at the start of the exam.
The other options are incorrect because they do not accurately reflect the role of the invigilator. Option A, “would give,” is in the past tense, which is not appropriate for this situation. Option B, “given,” is the past participle of the verb “give,” which is also not appropriate for this situation. Option D, “gives,” is the present tense of the verb “give,” which is not accurate because the invigilator will give the question papers at the start of the exam, not continuously throughout the exam.
In conclusion, the correct answer is: C. will give