If your data led you to conclude that your hypothesis was rejected, which of these should you do next?
a. write a report declaring the experiment to be a failure.
b. throw out your results and try again to get data that proves your hypothesis.
c. form a new hypothesis and repeat the steps of the scientific method.
d. try to figure out why your data is incorrect.

C.Form a new hypothesis and repeat the steps of the scientific method.

Explanation:

A hypothesis can be define as a framed statement(s) which is based upon a proposed explanation for a particular phenomena. It is based upon few evidences that are required to be proved by implementing a scientific methodology. The statement of the hypothesis can be rejected or accepted that depends upon the outcome of the experiment obtain after the application of scientific methodology.

If the details of the hypothesis does not match with the data or result obtain after the experimentation procedure then a new hypothesis should be framed and the experiment should be repeated again using the same steps. The previous hypothesis should be rejected as the experimental results do not verify it.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d