Miriam measures the water level at the end of a dock each day. On Monday, she marked where the water level was on one of the dock pilings. On Tuesday, the water level was 4 1/2 inches lower On Wednesday, the water level was 2 inches lower than the day before. On Thursday, Miriam marked the water level on the piling again. The water level was 5 3/4 inches higher than the day before. How does the height of Thursday's mark compare to the height of the mark Miriam made on Monday?

A Thursday's mark is 3 1/4 inches below Monday's mark.
B Thursday's mark is 3/4 inch below Monday's mark.
C Thursday's mark is 3/4 inch above Monday's mark.
D Thursday's mark is 3 1/4 inches above Monday's mark.