After a Thorough Analysis of the DNA from 150 University

Multiple Choice

After a thorough analysis of the DNA from 150 university students,a small region of the human X chromosome is found to have three SNP sites.Two of those sites have three different variants,while the third site has four.How many different haplotypes were present in each student's cells?

A) 1 or 2
B) 3 or 6
C) 10 or 20
D) 32 or 64
E) It is impossible to determine based on this information alone.