Answer:
correct answer is option A
Explanation:
Service entrance head
In Electrical power distribution system service entrance head is the point where power is distributed to the panel board of consumer house from service drop.
Service drop:
Service drop is an electrical line which is connected from utility pole, to a consumer house. Service drop is a point where electric company's system provide power to its consumer.
From definition of service entrance head and service drop it is clear that a home electrical system is joined to the electric company's system at the junction of the service entrance head and service drop and from service drop power is distributed to the panel board of consumer.
