The correct answer is D. no article.
The word “sugar” is a non-count noun, which means it cannot be used with a number or an article. For example, you would not say “I like one sugar in my coffee” or “I like the sugar in my coffee.” Instead, you would say “I like sugar in my coffee.”
Non-count nouns are nouns that refer to things that cannot be counted individually. Some other examples of non-count nouns are water, milk, rice, and sand.
When using non-count nouns, it is important to use the correct verb form. The verb “to take” is used with non-count nouns in the infinitive form. For example, you would say “I like to take sugar in my coffee” or “I would like to take sugar in my coffee.”
I hope this helps! Let me know if you have any other questions.