Explanation:

Correct Answer is (d).The original sentence is incorrect.
Reason: We can infer that parliamentary rules and procedures which govern how business is conducted do not allow sloganeering inside the chamber. Therefore, ‘governing’ should be used instead of ‘government’ in the given context of the sentence.
Moreover, here ‘conduct’ means ‘carrying out’, i.e. how business should be carried out. Therefore, instead of the preposition ‘in’, ‘of’ should be used here so as to make the sentence correct.
The sentence after replacement becomes:
Parliamentary rules and procedures governing conduct of business don’t allow sloganeering in any form inside the chamber.Option D is hence the correct answer.