You Are Given an E-R Diagram with Two Entities,ORDER and CUSTOMER,as

Multiple Choice

You are given an E-R diagram with two entities,ORDER and CUSTOMER,as shown above,and are asked to draw the relationship between them.If a given customer can place only one order and a given order can be placed by at most one customer,which of the following should be indicated in the relationship symbol between the two entities?

A) N:M
B) 1:1
C) 1:N
D) N:1