Ablue line, called a line, that appears when you are dragging a gui object on a windows form object indicates that the object being dragged is horizontally aligned with the object connected by the blue line.
a. key
b. hot
c. base
d. snap

snap

Explanation:

The line which appears when we are dragging an object of GUI on a object of  windows Form indicates that the object that is being dragged is aligned horizontally with the object which is connected by the blue line is called a snap line.

Hence we conclude that the answer to this question is snap line.

incoplete qest

explanation:

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