Question

the main function of the executive branch is to
increase the size of the bureaucracy
carry out and enforce laws and policies
select who will serve as president
write and pass new national legislation

Explanation:

The executive branch's core role in a government - based system is to implement and enforce laws and policies made by the legislative branch. It is not about increasing bureaucracy, selecting a president (which is usually through an electoral process), or writing and passing legislation (legislative function).

Answer:

B. carry out and enforce laws and policies