Identify the factors affecting teaching related to a positive learning environment in an institution(i) The extent to which teachers make a clear presentation(ii) The scope for sharing and open discussions within the classroom and the institution as such(iii) Teachers mastery of the content as reflected in answering student& questions(iv) Frequent use of positive reinforcers either in the institution or classroom(v) Availability of teacher and his/her guidanceChoose the correct answer from the options given below:

• A. (i) and (iii)
• B. (ii) and (iii)
• C. (iv) and (v)
• D. (ii) and (iv)