Which one of the following average slopes is applicable for the Continental Shelf?

Correct option is C

Introduction
The Continental Shelf is the gently sloping, submerged extension of the continent. It is characterized by an extremely gentle gradient, with an average slope of approximately 0° 17' (about 0.28 degrees). Therefore, the most accurate description among the options is one degree or less.
Information Booster
· Definition: The underwater landmass that extends from a continent, resulting in an area of relatively shallow water.
· Slope: The Continental Shelf is characterized by a very gentle slope.
· Average Gradient: The average slope is approximately 0° 17', which is significantly less than one degree.
· Extent: It typically extends from the coast to the continental shelf break, where the slope dramatically increases to form the continental slope.
· Economic Significance: It is home to most marine life, fishing grounds, and offshore oil and gas deposits.
Additional Points
· Three degrees to five degrees, five degrees to seven degrees, and One degree to three degrees: These slope values are too steep. A slope of 3° to 7° is more characteristic of the much steeper Continental Slope, not the shelf.