A smaller plane is much safer than . . . . . . . . larger plane. A. a B. an C. the D. no article

The correct answer is D. no article.

The reason is that the word “plane” is a countable noun, which means that it can be used with a number. In this case, the sentence is comparing a smaller plane to a larger plane. Since the word “plane” is already specific, there is no need to use an article.

Here are some more examples of how to use countable nouns without articles:

• I have two dogs.
• I bought a new car.
• I ate an apple.

In contrast, uncountable nouns do not need to be specific, so they are used with articles. Here are some examples of how to use uncountable nouns with articles:

• I like water.
• I need some milk.
• I have a lot of money.

I hope this helps! Let me know if you have any other questions.