The correct answer is B) While driving to work this morning, I passed a car accident at the corner of Elm and Juniper.
The sentence that is most clearly written is "While driving to work this morning, I passed a car accident at the corner of Elm and Juniper."
When writing a sentence, you have to be specific, direct, and clear. Of course, you check your grammar and spelling and avoid wordy sentences that do not have any real meaning on it. If any other detail, adjective or peace of information is necessary, you included. But remember to be real, direct, and to the point, specific.