A construction worker can install 2 windows in 4 of a day. When setting up the schedule, the worker determines that he can install 1 of a window per day. What was the worker's error?
* The worker multiplied 2 by instead of dividing 2 by
O The worker divided 1 by 2 instead of dividing 2 by
O The worker subtracted from 2 instead of dividing 4 by 2.
O The worker divided 2 by instead of subtracting 4 from 2.
• The worker divided 2 by 1 instead of dividing 1 by 2.