Final answer:
Bottom-up budgeting involves departments and agencies formulating their budgetary needs, committees considering the budgetary demands, and taxing and spending committees consolidating requests.
Step-by-step explanation:
Bottom-up budgeting involves departments and agencies formulating their budgetary needs, committees considering the budgetary demands of departments and agencies, and taxing and spending committees in the legislature consolidating the budgetary requests. Therefore, the correct answer is D) All of the above.