Based on federal laws, in regards to if Matt can keep doing non-driving work, B. Yes, he may continue to perform non-driving duties after he's hit the limit, but those hours must be added to his total hours on duty in the prior seven days.
If a commercial driver has driven 60 hours in 7 consecutive days, he will have to stop driving until he rests for more than 36 hours without driving.
He can however, engage in non-driving tasks on-duty, but those tasks will be added to the hours he spent on duty in the previous days.
In conclusion, option B is correct.
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