* Mark the letter A, B, C, or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges.
He was so addicted to social networks that he quitted all other outdoor activities.
A. He was not addicted enough to quit all other outdoor activities.
B. He had quitted all other outdoor activities before he became addicted to social networks.
C. The social networks are too addictive for him to quit all other outdoor activities.
D. He was such an addict to social networks that he quitted all other outdoor activities.