A range in which a measuring instrument or controller does not respond is the

Dead band

Explanation:

In Instrumentation, dead band is defined as a range in which a measuring instrument or controller does not respond. It is also known as the neutral zone or dead zone and it is usually caused by packing friction or unbalanced forces.

solution:

the right option is a

to adding   a new row to a table we   have to do process last table cell and pressing tab.

this is the process to add new row in the cell:

* to add a row below the cell, click insert below in the rows and columns group.

thus this is the required right answer.