Read the lines from "the tide rises, the tide falls."

darkness settles on roofs and walls,
but the sea, the sea in darkness calls;

the imagery in these lines evokes a sense of

Mystery

These lines evoke a sense of mystery. First of all, the setting is dark. This always contributes to a feeling of mystery because of the difficulty of seeing things properly. Moreover, the setting seems to be quiet, except for the sea, and the sea is calling. The lines make you wonder why the sea is calling, what it is trying to say, and what the character will do about it. All of these contributes to the mysterious tone.

the thesis statement : d

your answer is b. "with strong wording encouraging readers to take action."