Answer:
C. in a cluster of galaxies
Step-by-step explanation:
Gravity is considered to be a universal force of attraction which acts between all objects that has both mass, energy and occupy space. Therefore, it acts in such a way as to bring objects together.
Additionally, the gravity of earth makes it possible for all physical objects to possess weight.
A galaxy can be defined as a collection or group of many billions of stars and other planetary body which are existing independently.
Hence, Earth's location in space can be described as being in a cluster of galaxies within the solar system comprising of jupiter, mars, sun, venus, moon, etc.