Read the sentence.. by studying human genes, scientists hope to learn more about how to prevent and cure hereditary diseases.. which word or group of words is the simple subject? a. hereditary diseases. b. scientists. c. human genes. d. genes

The one that is a simple subject from the sentence above is : D. Genes

Simple subject is the main word in a group of words that basically tell what the sentence is all about. We can all agree that that sentence is talking about genes

hope this helps

Out of the choices given, the word or group of words that is the simple subject is scientists. The correct answer is B, scientists. 

Ithink that the answer is a