the subject of participle
The passage below comes from ‘THE BLANK SLATE.’
http://evolbiol.ru/blankslate/blankslate.htm Though many of my arguments will be coolly analytical — that an acknowledgment of human nature does not, logically speaking, imply the negative outcomes so many people fear — I will not try to hide my belief that they have a positive thrust as well. “Man will become better when you show him what he is like,” wrote Chekhov, and so the new sciences of human nature can help lead the way to a realistic, biologically informed humanism.... They identify the moral intuitions that we can put to work in improving our lot. They promise a naturalness in human relationships,
encouraging us to treat people in terms of how they do feel rather than how some theory says they ought to feel. They offer a touchstone by which we can identify suffering and oppression wherever they occur,
unmasking the rationalizations of the powerful.
In this passage I’m not sure about what is the subject of the two participles, ‘encouraging’ and ‘unmasking.’
In a way the subject of the two can be ‘they(=the new sciences of human nature).’
In that case the author can change the underlined words with ‘and encourage,’ and ‘and unmask.’
On second thought, the subject of the two can be the preceding content of the sentence; ‘encouraging’ can be written as ‘which encourages,’ in this case ‘which’ refers to ‘promise a naturalness in human relationships,’ and ‘unmasking,’ as ‘which unmasks,’ so ‘which’ refers to ‘identify suffering and oppression.’
Can you tell me which way do you prefer?
If you don’t agree with either of the two, can you suggest another?
Thanks in advance.