Question

fusible links: a) contain a short length of reduced - gauge wire that melts when amperage is exceeded b) contain a set of contacts that open when amperage is exceeded c) are plug - in devices that melt when amperage is exceeded d) open a circuit if temperature gets too high

Explanation:

Fusible links are made of a short - length of reduced - gauge wire. When the current (amperage) exceeds a certain level, the wire heats up and melts, breaking the circuit to prevent damage from over - current.

Answer:

A. Contain a short length of reduced - gauge wire that melts when amperage is exceeded