The correct answer is: B. was held
The truck driver was held responsible for the accident. This means that the truck driver was considered to be the one who caused the accident. The truck driver may have been held responsible because they were driving too fast, they were not paying attention, or they were not following the rules of the road.
The other options are not correct because they do not accurately describe the relationship between the truck driver and the accident. Option A, “was holding,” suggests that the truck driver was carrying something that caused the accident. Option C, “declared,” suggests that someone else declared the truck driver to be responsible for the accident. Option D, “had,” suggests that the truck driver owned something that caused the accident.
In conclusion, the correct answer is: B. was held. The truck driver was held responsible for the accident.