Answer:
d. Mars.
Step-by-step explanation:
In the solar system, there are 8 planets. The arrangement of planets in order from closest to farthest from sun is:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
The first 4 our rocky planets.The last four are Jovian planets/gaseous planets. From the given options, the planet which is furthest is Mars.