Andrew is no smarter than his graduate school classmates, but his self-discipline and passionate dedication to long workdays resulted in notably superior academic accomplishments. andrew's unusual level of success best illustrates the importance ofa. analytical intelligence. b. street smarts. c. the g factor. d. grit.

Its D ,grit !

Explanation:

GRIT :-

It can be defined as a passion ,consistent postive attitude towards a goal which is meaningful.

One can be gritty by :-

by going smokefree, you could improve the well-being of your friends, family, coworkers, and even your pets. here’s how the cigarettes you smoke affect the people around you.

you may having too much sleep.. a good night sleep consists of about 7 hours. more than that could be the reason you're still tired throughout the day.