Which of the Following Is an Example of Random Allocation

Multiple Choice

Which of the following is an example of random allocation of subjects to groups?

A) A sign-up sheet is passed around the class with times. Participants are allowed to sign up for the time that fits them best
B) Rats are pulled from a group cage and the first batch are placed in Condition 1, the second in Condition 2, and so on
C) Assign numbers individually and non-systemmatically, then look at a random number table to allocate them to groups.
D) Divide participants based on where they live