Which of the Following Are Generally True About Project Managers

Which of the following are generally true about project managers (circle all that apply) :

A) they must have a balanced outlook that encompasses all functional areas involved in the project
B) they must be proficient in using management tools
C) they must be able to work with people and delegate responsibility
D) they must be able to manage the project using the perspective of the particular area they are most knowledgeable in.