To Address the Problem of Teacher Shortages

To address the problem of teacher shortages,

A) most are taking steps to entice former teachers and education majors who are working in other fields back into the classroom, and nearly all have relaxed or set up streamlined teacher certification requirements.
B) few are taking steps to entice former teachers and education majors who are working in other fields back into the classroom, and none have relaxed or set up streamlined teacher certification requirements.
C) all are taking steps to entice former teachers and education majors who are working in other fields back into the classroom, but only a few have relaxed or set up streamlined teacher certification requirements.
D) states are simply waiting for the free market to address this as a labor shortage.