Your answer: W4D
You are correct. After the multiple call, Y2B X3C W4D DE Z1A, each station would normally
answer in the order called. Therefore, W4D would answer after X3C.
The double station call, single station call, and the multiple cell are all examples of a call-up
type wherein the call signs identify one and only one particular station. These three types of
calls can be grouped together under a broader type of call-up known as a