The way through which protists can not able to reproduce is known as pollination which involves seeds and pollen cells. Thus, the correct option is A.
What are Protists?
Protists may be defined as a type of organism that is generally composed of single-celled, eukaryotic, and microscopic living entities.
The protists Paramecium reproduces with the mechanism of conjugation. Protists like Amoeba and Euglena reproduce asexually. Protists including Plasmodium reproduces sexually.
The method of pollination is significantly utilized by plants in order to perform a biological process known as reproduction.
Therefore, pollination is one of the methods which is not used by Protists during reproduction. Thus, the correct option is A.
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