Answer:
Both "a" and "b" are reasons for the organization of Congress into committees.
Explanation:
The Legislative branch is granted with the arduous task of proposing bills, discussing them and enacting legislation. Without its four types of committees (The permanent, joint, specials and conferences committees), which are also divided into sub-committees, Congress would not be able to deal with the great volume of legislation of different matters that comes before it, and it would simply collapse. Furthermore, this type of organization is also important due to the opportunity for members to develop expertise in one or two fields (Commerce, Foreign Affairs, Education, Workforce, etc.) so they can propose and make laws that best fit Americans' needs.
