In a voltage-clamp experiment on a squid giant axon, the membrane potential is clamped at +20 mV, as shown below. Within the same time frame, which of the curves A to D better show qualitatively how the total membrane current changes? A positive value of the current represents an outward flow of cations. 
Definitions:
Demand
The desire to own anything, coupled with the power to obtain it.
Price Increase
A rise in the cost of goods and services, which can be caused by factors such as inflation, increased production costs, or higher demand.
Demand Curves
Graphs displaying the relationship between the price of a good and the quantity demanded by consumers, typically downward sloping.
Original Price
The initial price of a product or service before any discounts, markdowns, or promotions.
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