Question 22

Rain also helps in the propagation of some plant species

This option clearly and concisely states that rain plays a supportive role in the propagation of certain plant species, maintaining the sentence's original meaning while enhancing clarity.

A) the propagation of some plant species is also helped by rain

While this option retains the original meaning, it is somewhat wordy and less direct than the correct answer. The phrase "is also helped by" can be simplified, which makes option C a stronger choice.

B) some plant species are also helped by rain to propagate them

This option is awkwardly structured and introduces unnecessary complexity. The phrase "to propagate them" is redundant and can be eliminated for clearer communication. Thus, it does not convey the idea as effectively as option C.

C) rain also helps in the propagation of some plant species

This option is the most straightforward and grammatically correct version. It places "rain" at the beginning, emphasizing its role and creating a more fluid reading experience, which enhances the overall clarity of the sentence.

D) it is also helpful for the propagation of some plant species to have rain

This option is unnecessarily verbose and convoluted. Phrasing it as "it is also helpful for" complicates the sentence without adding value, making it less effective than the direct approach of option C.

Conclusion

Option C is definitively the best choice as it provides a clear, concise, and grammatically correct phrasing that emphasizes the role of rain in plant propagation. The other options either retain unnecessary complexity, introduce awkward structures, or fail to convey the message as effectively, thereby making them less suitable for the context.