Lake Powell, formed by Glen Canyon Dam, is not a lake. It is a
reservoir, with a constantly fluctuating water level - more like a
bathtub that is never drained than a true lake. As at Hoover (or
Boulder) Dam, the sole practical function of this impounded
water is to drive the turbines that generate electricity in the
powerhouse in the base of the dam. Recreational benefits were
of secondary importance in the minds of those who conceived
and built this dam. As a result the volume of water in the
reservoir is continually being increased or decreased according
to the requirements of the Basin States Compact and the power-
grid system of which Glen Canyon Dam is a component.
Which statement best describes Abbey's use of logos in this passage?
O A. Abbey describes the beauty of the lake to encourage people to visit.
OB. Abbey uses a sarcastic tone to make counterarguments sound
unreasonable.
OC. Abbey provides further clarification of terms for the audience.
O D. Abbey explains that he has firsthand experience with lakes and
reservoirs.