If an electrical heater has three heating elements connected in parallel why does each element have its own fusible link and limit switch?

If an electrical heater has three heating elements connected in parallel why does each element have its own fusible link and limit switch?
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why the electrical appliances are connected in parallel ?

Description : why the electrical appliances are connected in parallel ?

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Last Answer : Answer: A

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Description : In the illustration, when the energy saver switch is in the 'lo' position _________. EL-0042 A. the mullion and frz flange heaters will not energize B. the mullion heater and refrig light will ... D. the range of the freezer temperature control is increased causing the cut-in temp to become warmer

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