The correct answer to this open question is the following.
The personality disorder that best describes this client is OCPD, Obsessive-Compulsive Personality Disorder.
This person is reported to be easily irritated if the home is not maintained in a specific order and when the client is unable to complete a "to do" list on time. It is presenting the symptoms of Obsessive-Compulsive Personality Disorder. This personality disorder shows a sharp preoccupation of the person with perfectionism, order, and excessive control with no flexibility at all. These people need to have to control everything, all the time. It is the extreme of perfectionism.
D both b and c are correct
I believe the answer is: volunteer, communications, and fund-raiser
The volunteer would played roles as the front people during the campagin. Their jobs would be revolved around increasing the popularity of the candidates through things such as making posters or handing out pins.
Communications people would handle media related campaign and fund raiser would be the one that help the candidate collecting the money to be used for the campaign.
The correct answer is "prediction models". Political scientists have developed prediction models that help to clear doubts about the veracity of the presidential elections. This tool takes into account economic and sociological factors as well as public opinions to predict who is the winner in upcoming presidential elections.