the correct answer is letter A. Energy is the only noncountable noun.
It can't be letter D because day is not a noncount noun.
Letter C is also a countable noun, so letter B cannot be an option.
Letter B is a countable noun, so it can't be an option.
Answer:
develop a product that can work with or without electricity.
Explanation:
Engineering refers to a branch of cience and technology that deals with the creation, construction and operation of structures, machines and devices that drive machines. Meanwhile, Technology has to do with employing scientific information for practical functions. As a result, a person who works in Engineering and Technology is likely to design functional products with different sources of energy.
The originator of transformational grammar was Noam Chomsky.