His father looked hostile, and clenched his fists as if wanting to knock Gregor back into his room. Then he
looked uncertainly round the living room, covered his eyes
with his hands and wept so that his powerful chest shook.
--David Wyllie, trans. The Metamorphosis
Which word could replace the underlined word without
changing the overall meaning of the sentence?
A. kindly
B. uninterested
C. angry
D. unconcerned