Which factor plays a crucial role in creating an effective learning environment?

Availability of instructional facilities plays the crucial role in creating an effective learning environment.

Teacher's qualification (A) matters but does not by itself make the environment.

Focus on foreign language use (C) is irrelevant to environment quality.

Admission only from an elite class (D) is exclusionary and counterproductive.

Adequate facilities give learners the resources and space to engage actively.

A supportive physical and psychological climate underpins effective learning.