To categorize the mood of the verbs in each sentence, we can analyze them as follows:
I. "Some economic enterprises have been permitted to operate with greater freedom from state control." - Indicative mood (stating a fact)
II. "Are these the beginnings of profound changes in the Soviet state?" - Interrogative mood (asking a question)
III. "Or are they token gestures, intended to raise false hopes in the West, or to strengthen the Soviet system without changing it?" - Interrogative mood (asking a question)
IV. "We welcome change and openness; for we believe that freedom and security go together, that the advance of human liberty can only strengthen the cause of world peace." - Indicative mood (stating beliefs and facts)
Therefore, the correct categorization is:
Interrogative: II and III
Indicative: I and IV
The correct answer choice is B.