Fill in the blank with a suitable preposition.
Sara didn't want her sister to find the gift before her birthday. So she hid it _______ her clothes.
We use the preposition ‘below’ when something is lower than something else, but not directly covered by the object on the top. For example, "below the building" and "below the peak". We would use 'under' when something is hidden beneath/underneath an object, like the clothes, since there is contact between the clothes and the object placed. Therefore in the given context ‘below’ wouldn’t be grammatically correct. Thus option A is incorrect. On the other hand, ‘behind’ means ‘at the back of someone/something’. Sarah hid the gift at the back of her clothes so that it would remain concealed. Therefore option C is correct. When we use ‘from’ it would mean that Sara hid the gift from the clothes and not her sister. ‘From’ in the given context can be used only while denoting a person and not inanimate objects. Thus option B is incorrect. Similarly ‘against’ would be inappropriate here because it means supported by or in a collision with. The verb ‘hid’ means to keep something concealed, therefore against would not be an apt option in the given context. Thus option D is incorrect.