Match each number from Column I with the letter or letters of the sets of numbers from Column II to which the number belongs. There may be more than one choice, so give all choices.

I........................................................... II.

(a) 0 .......................................A. Natural numbers 

(b) 34.....................................B. Whole numbers

(c) - 9/4..................................C. Integers 

(d) 236...................................D. Rational numbers

(e) 213...................................E. Irrational numbers

(f) 2.16...................................F. Real numbers