Topic: Transformation of Sentence,

Best Answer Explained in Below-:

The question presents a negative statement: "A child likes only sweets." This implies that the child's preference is exclusively for sweets, indicating that they do not enjoy other types of food. Analyzing the provided options in this light reveals why option A, "A child likes nothing but sweets," is the correct choice.

Option A retains the core meaning of the original statement. The phrase "nothing but" clearly reinforces the exclusivity of the child's preference for sweets, suggesting that sweets are the only category of items the child likes. This aligns directly with the notion of liking "only" sweets.

In contrast, option B, "A child likes none but sweets," while similar, can imply a slight ambiguity regarding the child's preferences. Option C, "A child likes but sweets," is grammatically incorrect and fails to convey the exclusivity. Meanwhile, option D, "A child likes not more sweets," suggests a limitation in quantity rather than affirming a preference for sweets over other foods.

Overall, option A encapsulates the essence of the original statement most accurately, making it the best choice to convey that the child's liking is strictly limited to sweets.