Eye-tracking studies investigating attention as we carry out actions such as making a peanut butter sandwich shows that a person's eye movements .
a. usually followed a motor action by a fraction of a second
b. was influenced by unusual objects placed in the scene
c. were determined primarily by the task continually scanned all objects and areas of the scene

The correct option is C: were determined primarily by the task.

Explanation:

When you are unaware of a situation that might be threatening to the eyes, the eye movement follows a motor action by a fraction of a second. However, when you are accomplishing a task, especially one that you are focused on, like making a peanut butter sandwich, the movement of the eye is influenced by the task being carried out.

since you have not provided the options here i   am going to give you general overview about hormone.hormone are actually the part of endocrine system in our body and produced by the endocrine glands. the hormones act like a chemical messenger   within human body. once produce by the glands they   travel through the blood stream and reach at specific or target tissue and organs   which result in control of our body function. the hormones are specific in their work and work on only the targeted tissue or organ   . with the of hormone endocrine system regulate the heart rate , metabolism, our mood and   growth as well as the development and even the sleeping cycle etc. they actually are the messenger for body cell and organs .