Which statement best describes the geocentric theory?

a)the earth and planets revolve around the sun.
b)the stars form concentric spheres around the sun.
c)all celestial bodies revolve around the earth.

The correct answer will be option-C.

Explanation:

The geocentric model is the model system which explained the planetary motion of the planets in the solar system.

The geocentric model was proposed by the Ptolemy which stated that earth is present at the center of the solar system and all the celestial bodies including planets and stars revolve around it.

This model system was disproved by Nicolas Copernicus which explained that Sun is present at the center of the solar system and all planets revolve around the sun,

Thus, Option-C is the correct answer.

adding a(n) to an electric circuit would increase the magnetic field around a wire;

b. solenoid

a solenoid is a type of electromagnet whose purpose is to generate a controlled magnetic field.

if the purpose of the solenoid is instead to impede changes in the electric current, a solenoid can be more specifically classified as an inductor rather than an electromagnet.

the answer is a. hope this .