|Question 4Verbal

Source Texts

Text
Some ethicists challenge the concept of personal character, claiming that if it were meaningful, situational factors could not, as they clearly can, induce behavior contrary to that character. As Rachana Kamtekar observes, this argument is difficult to reconcile with our lay conception of character: we expect a person of helpful character to be frequently helpful, not ______ helpful.
Which choice completes the text with the most logical and precise word or phrase?
self-servingly
A
sporadically
B
grudgingly
C
unfailingly
D