Answer:

Explanation:
The correct answer for the given question is option 'c) familiar'.

Reasoning:
To understand why option 'c) familiar' is the correct answer, let's analyze the meaning of each option in relation to the given sentence:

a) constantly: This word means "continuously" or "without interruption." However, it doesn't fit in the context of the sentence because it doesn't convey the idea of being associated or acquainted with the names of notorious criminals.

b) convenient: This word means "suitable" or "easy to use." It doesn't make sense in the given sentence because it doesn't describe the state of being associated with the names of notorious criminals.

c) familiar: This word means "well-known" or "recognized." It is the correct answer because it accurately describes the state of being associated with the names of notorious criminals. It implies that the names of notorious criminals were known or recognized by the people.

d) obvious: This word means "clear" or "evident." While it may seem like a plausible answer at first, it doesn't fit the context of the sentence. The sentence doesn't indicate that the names of notorious criminals were obvious; it only suggests that the people were associated with or acquainted with these names.

e) ignorant: This word means "lacking knowledge" or "unaware." It is not the correct answer because it implies that the people were unaware of the names of notorious criminals. However, the sentence suggests the opposite - that the people were familiar with these names.

Therefore, the correct answer is option 'c) familiar' as it accurately reflects the idea that the people were associated with or acquainted with the names of notorious criminals.