The correct answers are stereotyping; discrimination
Answer 1: Rhoda is exhibiting stereotyping. Stereotyping or stereotypes refer to unfounded and often false generalizations and beliefs that people have about people belonging to a certain group, race, gender, etc. An example of stereotype is believing that all African American men are aggressive. In this instance, Rhoda is exhibiting stereotyping by assuming that short people are lazy.
Answer 2: Rose is exhibiting discrimination. Discrimination simply refers to behaviors and actions that arise due to stereotyping. For instance, if a policeman thinks that Black men are more aggressive than Caucasian men, he might discriminate against Black men by accusing and arresting them instead of arresting Caucasian men who might actually be the perpetrators or equally at fault. In this instance, Rose is exhibiting discrimination by refusing to let short people join her book club.