At . . . . . . . . first it was difficult for her to drive . . . . . . . . car in . . . . . . . . London. A. no article, the, no article B. the, the, no article C. no article, no article, the D. a, no article, the

The correct answer is: A. no article, the, no article

The first blank should be filled with no article because it is a general statement about driving a car. The second blank should be filled with the definite

Here is a more detailed explanation of each option:

• Option A: no article, the, no article
  This is the correct answer because it follows the rules of English grammar. The first blank should be filled with no article because it is a general statement about driving a car. The second blank should be filled with the definite article the because it refers to a specific car. The third blank should be filled with no article because it is a general statement about London.

• Option B: the, the, no article
  This is not the correct answer because it uses the definite article the twice. The first blank should be filled with no article because it is a general statement about driving a car. The second blank should be filled with the definite article the because it refers to a specific car. However, the third blank should not be filled with the definite article the because it is a general statement about London.

• Option C: no article, no article, the
  This is not the correct answer because it does not use the definite article the when it should. The second blank should be filled with the definite article the because it refers to a specific car.

• Option D: a, no article, the
  This is not the correct answer because it uses the indefinite article a when it should not. The first blank should be filled with no article because it is a general statement about driving a car.