In the study of dolphins by Bender et al. (2009), mothers were found to spend more time chasing prey when calves were pr

[answerhappygod]

In the study of dolphins by Bender et al. (2009), mothers were
found to spend more time chasing prey when calves were present than
when they were alone. Which criterion/criteria for teaching might
this provide evidence for?
A) Modification of behaviour in the presence of he naive
observer
B) Costs (or lack of immediate benefit) to teacher
C) Learning by pupils as a result of teacher behaviour
D) All of the above