I hope you are referring to Head First PMP, Third Edition. I just verified in the second reprint released yesterday (Feb 3, 2014) and it still has the same issue.
Thanks for bringing this up.
RASMI V NAIR, on 06 January 2014 - 09:46 AM, said:
Which of the following is NOT an output of Collect Requirement?
A. Requirements Observations
B. Requirement Traceability Matrix
C. Requirement Documentation.
D. Requirement Management Plan.
Answer given in the book is A . Requirement Observations -
As per PMBOK 5 - "Requirement Management Plan" is an out put of "Plan Scope Management Process" and input to "Collect Requirement Process".
The answer in the book follow PMBOK 4.