Answer:
Correct choice is C
Step-by-step explanation:
If there are 6 questions on the survey, then first question can be chosen 1 from 6 - in 6 different ways. After choosing first question, 5 questions remain, second question can be chosen 1 from 5 - in 5 different ways. After choosing second question, 4 questions remain, third question can be chosen 1 from 4 - in 4 different ways. After choosing third question, 3 questions remain, fourth question can be chosen 1 from 3 - in 3 different ways. After choosing fourth question, 2 questions remain, fifth question can be chosen 1 from 2 - in 2 different ways and last sixth question is defined in 1 way.
Using the product rule, you get
[tex]6\cdot 5\cdot 4\cdot 3\cdot 2\cdot 1=720[/tex]
different arrangements.