The correct option is A -40mV to -90mV
The resting membrane potential (RMP) is created because of a small buildup of negative ions in the axoplasm and an equal buildup of positive ions in the extracellular fluid (ECF). Such a separation of positive and negative charges is a form of potential energy which is measured in volts or millivolts. It ranges from -40mV to -90mV. A typical value is -70mV.
During depolarization, the value may change from -70mV to +30mV. Threshold stimulus to be applied for bringing about depolarization ranges from -55mV to -60mV.
During hyperpolarization, the value may go below -70mV.