Given below is a statement followed by two conclusions numbered I and II. You have to assume everything in the statement to be true, even if it appears at variance from commonly known facts. Then consider the two conclusions together and decide which of them logically follow(s) the information given in the statements.
Statement : A research found that if high school students get eight hours of sleep instead of 6 hours before exam, then their marks improve by 20%.
Conclusions : I. Eight hours of sleep is better than six hours of sleep if a student wants better marks.
II. Students are stressed as well exams are tough.

Options

A. Only conclusion I follows
B. Neither conclusion I nor II follows
C. Only conclusion II follows
D. Both conclusion I and II follows