The answer is B-swimming.
Wind turbines can be classified by their mechanical power control, and further divided by their speed control. All turbine blades convert the motion of air across the air- foils to torque, and then regulate that torque in an attempt to capture as much energy as possible, yet prevent damage.
The type of pronoun used in the above sentence is a RELATIVE PRONOUN.
The relative pronoun is found in the beginning of the adjective phrase. The adjective phrase describes the noun.
In the above sentence the adjective phrase is: WHICH IS SOMETIMES CALLED THE RED PLANET.
It describes the noun MARS.
The relative pronoun used is WHICH.
The answer would be C<span>. Music often takes away from a film’s believability and realism. Often time music is added to make the film believable and realistic, such as the creaking of a door or stairs without showing the actual scene. It also adds to the tone that the story is portraying.</span>
