The stolidity with which I received these instructions was, no doubt, rather exasperating: for they were delivered in perfect sincerity; but I believed a person who could plan the turning of her fits of passion to account, beforehand, might, by exerting her will, manage to control herself tolerably, even while under their influence; and I did not wish to 'frighten' her husband, as she said, and multiply his annoyances for the purpose of serving her selfishness. Therefore I said nothing when I met the master coming towards the parlour; but I took the liberty of turning back to listen whether they would resume their quarrel together. He began to speak first. Based on the use of quotation marks around the word "frighten" in the second paragraph, how does the narrator feel toward Catherine?

a) Amused
b) Concerned
c) Disillusioned
d) Exasperated
e) Resigned