What Was It About Murray That Made Harvard Psychology Chair

What was it about Murray that made Harvard Psychology Chair Boring quake with fear?

A) Murray's reputation as a "put-down artist"
B) that Murray was about to puncture psychology's soft underbelly
C) that Murray's criticisms of his colleagues would cost Boring his job, because the two were considered a clique
D) Murray's threat to leave Harvard if he was not treated with more respect