We can develop a positive attitude by doing all of the following EXCEPT:
a) rejecting highly critical attitudes.
b) believing that we are worthy of respect.
c) freeing ourselves of highly evaluative feelings.
d) comparing ourselves with cultural standards and norms.

i know its not b or c

Suggested Reading:

Believe You Can--The Power of a Positive AttitudeBestselling author John Mason shows readers that believing in yourself is the first step to success. This accessible book is both inspirational and practical, encouraging readers to approach life with optimism and the assurance that they are meant for great things.