Jane starts to blink her eyes when her brother shines a flashlight at her. why does jane start blinking her eyes?
because of a spinal reflex
because of phototropism
because of a voluntary reaction
because of fear

The correct option is this: BECAUSE OF A SPINAL REFLEX.
Reflex action refers to the involuntary movement of any part of the body when such a part receive a stimulus. The response to reflect action is always immediate and it occurs without the consent of the affected person. Examples of reflex action is the contraction of the pupils when light shines in one's eyes and the quick withdrawal of one's hands when one touch a hot object. 

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