Students attending the University of Florida can select from 130 major areas of study. A student's major is identified in the registrar's records with a two-or-three letter code (for example, statistics majors are STA, and math majors are MS). Some students opt for a double major and complete the requirements for both of the major areas before graduation. The registrar was asked to consider assigning these double majors a distinct two-or-three letter code so that they could be identified through the student records' system.

A) What is the maximum number of possible double majors available to University of Florida students?

B) If any two or three letter code is available to identify majors or double majors, how many major codes are available?

C) How many major codes are required to identify students who have either a single major or double major?

D) Are there enough major codes available to identify all single and double majors at University of Florida?