Answer:
Option C, The public library
Explanation:
Instructional strategies are primarily used by university/college professors and school teachers to inculcate the habit of self-learning.
In a library, people who are interested in learning something on their own usually come. This means that all those who go to library do not need a teacher or professor to make them learn and hence are inculcated with the habit of self-learning .
Hence, option C is correct