Which of the Following Is a Nondirectional Hypothesis for the Research

Multiple Choice

Which of the following is a nondirectional hypothesis for the research topic, Are there differences in end of course biology test grades between those who use simulated labs and those who use traditional labs?

A) There are differences in end of course biology test grades between those taught through the use of simulated versus traditional labs.
B) There are no differences in end of course biology test grades between those taught through the use of simulated versus traditional labs.
C) Those taught in simulated labs perform better on end of course biology tests than those taught in traditional labs.
D) Those taught in traditional labs perform better on end of course biology tests than those in simulated labs.