The simple subject of this sentence is Matt Robins.
I believe its B just cause its the character speaking and the narrator explaining what the character is doing should be spoken in a lower voice. hope it helps i tried :-:
I agree with ur answer....under the surface...because of the context " drilled into the ground "
Answer:
The day he started his career
Explanation:
If george is making a career planning timeline then, he should include how he started to get to his goal
