Maximum te mperature of water in a heating pad: Bbl Gepute oA VIH OT BeT: a. . 40-50^circ C b. . 60-70^circ C C. . 20-30^circ C d. . 80-90^circ C

The correct answer is:<br /><br />d. $80-90^{\circ }C$<br /><br />Heating pads are typically designed to heat water to a temperature range of $80-90^{\circ }C$ for effective heating. This temperature range is generally considered safe and efficient for heating applications.