Multi-choice problem: Continue writing the next sentence in this paragraph:

How to become a theoretical physicist
Make sure you are serious about learning the subject.
Take every opportunity to learn more about physics and science in general.
If you are in high school or earlier, take all the science classes you can get.

Pick from:
(a). It is likely that your high school classes will approach physics largely from a newtonian perspective, but this is an important foundation for what you will learn later on. If you are at the university level, enroll in university classes in your chosen field..
(b). The more comfortable you become, the more comfortable you will be in society. If you are younger than a year old and there is a big difference between this and a year-old, you are much more likely to succeed..
(c). Help your teacher to help you keep up with trends. If you don't already have a good study partner, offer to help them out at their next class..
(d). You can even join an intramural team or class in that subject. Don't be afraid to talk to professors/advisors if you need more help..
(a).