This question is related to the poem “Keeping Quiet” by Pablo Neruda. In the poem, the poet appeals to everyone, including fishermen, to stop all activities for a moment and maintain silence.
Step 1: Understand the theme of the poem.
The poem emphasizes the importance of silence, introspection, and universal brotherhood. The poet urges people to pause their busy lives and reflect peacefully.
Step 2: Analyze the options.
(A) Not to harm whales: Although the poem suggests avoiding violence, this specific instruction is not directly stated.
(B) Not to go in the sea: The poet does not forbid fishermen from going to the sea permanently.
(C) To be still: This is correct because the poet asks everyone, including fishermen, to remain silent and still for a moment.
(D) To catch small fishes: This is unrelated to the theme of the poem.
Step 3: Conclusion.
Since the poet requests fishermen to pause and remain still, the correct answer is (C).
Final Answer:
\[
\boxed{(C) \, \text{To be still}}
\]