I ' m beginning to understand Jason 's whole thing about playing from the shoulder and not the wrist . An unexpected benefit from picking up the bass is that it 's my made my mom so happy . Every time she passes by and catches me practicing she starts smiling .

Question: What may be the reason my mom is so happy ?
Answer: I am beginning to understand .I have gotten better at playing bass .I am in my room when she passes by .None of the above choices .