In the following sentence/ a part of the sentence is underlined. Below are given alternatives to the underlined part at (a), (b), (c) which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is (d).
All these articles are kept in a tin box to prevent from spoiling of damp in rainy season.
prevent them from spoiling by damp
prevent them being spoiled by damp
prevent them from spoiling of damp
No improvement
B.
prevent them being spoiled by damp