Final answer:
The subject of this question is English, as it pertains to ELLs (English Language Learners) and their progress.
Step-by-step explanation:
The subject of this question is English, as it pertains to ELLs (English Language Learners) and their progress. The question asks about the percentage of ELLs who will achieve a specific outcome as measured by a certain method. The correct answer is option b) Improve language proficiency; the end of the semester; teacher evaluations.