The correct answer is D. Carbon-zinc.
A primary cell is a battery that cannot be recharged. It uses a chemical reaction to produce electricity. The voltage of a primary cell is determined by the type of chemicals used in the reaction.
Lithium cells have the highest voltage of all primary cells, at 3.6 volts. Zinc-chloride cells have a voltage of 1.65 volts. Mercury cells have a voltage of 1.35 volts. Carbon-zinc cells have the lowest voltage of all primary cells, at 1.1 volts.
Carbon-zinc cells are the most common type of primary cell. They are used in a variety of devices, including flashlights, toys, and calculators. They are also used in some hearing aids and medical devices.
Lithium cells are used in a variety of devices, including cameras, cell phones, and laptops. They are also used in some electric vehicles.
Zinc-chloride cells are used in a variety of devices, including hearing aids, watches, and calculators.
Mercury cells are no longer manufactured in many countries because of the environmental hazards associated with mercury. They are still used in some medical devices, but they are being phased out.