Final answer:
The answer to the student's question is 'Labels,' which were the branches of Motown Records that focused on specific genres of music.The correct option is B.
Step-by-step explanation:
The correct answer to the question Motown Records had 45 _____________'s, or branches of the company that focused on specific genres is option B) Labels.
Motown Records, a significant player in the music industry, created multiple labels under its umbrella to cater to a variety of musical genres and tastes.
Each label functioned as a separate entity within the larger Motown Records company, allowing for specialization and development of different styles of music, from soul and R&B to pop and rock.The correct option is B.