Answer: D. The practice of theory of politics are studied in the classroom but political habits on campus do not seem to benefit from such labor.
Explanation:
Precise and clear language is the use of language to convey a message in such a way that it can be be interpreted in the same way by most people. In other words, it should not be ambiguous such that it is open to interpretation.
For example, saying an individual is interesting is not clear and precise because we do not know what kind of interesting they are.
The last option however, states its position as clearly as possible in stating that although there are political lectures offered on the campus, people on campus act contrary to what is taught to them.