Answer: Option (C) is the correct answer.
Step-by-step explanation:
Carbon element has 4 valence electrons and it has a unique ability to combine with different elements.
Also, carbon element is the basis of life as organic molecules are responsible for life an individual.
And, every organic compound contains carbon atom as the central element.
Also, carbon has the ability to form long chains which is known as catenation property.
Thus, we can conclude that carbon element is able to combine in many ways with different elements and is therefore considered the basis of life.