From the given excerpt, the connotative meaning of the phrase 'annulled now' is used to indicate the non-visibility of the flecks of plankton.
Option B is the correct answer.
Connotative meaning is used to refer to or indicate something through a word.
In the excerpt, the phrase 'annulled now' is indicated to show that the flecks or the fragments of the plankton could no longer be seen by the old man due to high sun rays and he was able to see only the images of deep prisms in the clear water.
Therefore, the flecks of plankton were no longer seen by the old man is the connotative meaning that was suggested by the phrase 'annulled now'.
Learn more about the connotative meaning in the related link:
https://brainly.com/question/14712150
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