Choose the situation in which a multiple baseline across behaviors design would be most appropriate.
a.Two students in a 2nd grade classroom both engage in hitting behavior.
b.A student in a 2nd grade clasroom engages in hitting behavior in their math and science classes.
c.A student in a 2nd grade classroom engages in both hitting and spitting behaviors.
d.A student in a 2nd grade classroom engages in hitting behavior.
