This quote, if from the correct source, means that "<span>D. Running makes the speaker very happy" It also means that the speaker puts forth this happiness through the act of running. </span>
Sexual harassment is when you make any unwanted sexual based comments or actions towards another person.
Gender discrimination is when you treat someone as unequal based solely on their gender.
Sexual Orientation Discrimination is when you treat someone as unequal based solely on the subject of their Sexual Orientation (Gay, Lesbian, Bisexual, Straight etc)