Reason(R): Interchange is also called an envelope. An interchange may contain multiple messages. It starts with UNB and ends with UNZ
A. Both (A. and (R) are correct and (R) is the correct explanation of (A)
B. Both (A) and (R) are correct, but (R) is not the correct explanation of (A)
C. (A) is true and (R) is false
D. (A) is false and (R) is true
Answer:A
Reason(R): Interchange is also called an envelope. An interchange may contain multiple messages. It starts with UNB and ends with UNZ
A. Both (A. and (R) are correct and (R) is the correct explanation of (A) B. Both (A) and (R) are correct, but (R) is not the correct explanation of (A) C. (A) is true and (R) is false D. (A) is false and (R) is true