Questão número 636127

In each of the following sentences, a preposition is missing.

As he is an elderly man, he has a difficulty ________ using the computer.

This is a simple method ________ searching suitable solutions.

She was in trouble _________ robbing a car.

The alternative that respectively brings the correct preposition for each one is

• A.

  of / in / for

• B.

  about / by / for

• C.

  in / of / for

• D.

  of / of / when

• E.

  in / on / by