Which one of the following habits is found more often in good people ?

Option (a) is correct

Option (b) is incorrect – The passage specifically highlights in the last line “their use of falsehood, more or less deliberate”. Good people use lies more or less deliberately to reduce the harm from the truth.

Option (c) is incorrect – The passage does not argue for falsification of facts.

Option (d) is incorrect – The passage does not argue for concealing the truth.