Answer:
The best option would be 4. A researcher proposes to join a moderated support group for cancer survivors posing as a survivor. She plans to insert comments to see how the members respond.
Explanation:
Events in the dog's environment.
The secretion by the digestive glands in acknowledgment of stimuli correlated with the ingestion of food is called Psychic Secretion. such as the appearance and smell of food, the circumstances under which it is consumed is called Psychic Secretion.
Salivating to food in the mouth is reflexive, this involves no learning. However, dogs don't generally salivate at the perception of an empty bowl or the noise of footsteps. These unusual acknowledgments fascinated Pavlov, and hence he called the dogs as “psychic secretions”.
Adding more negative keywords.
Explanation:
When a certain selection of keywords is intended to improve the relevance of an ad. "The addition of more negative keywords will increase a certain amount of keywords in the ad's pertinence". Even though the goal is to increase the advertisement level, it will get more attention. In order to improve publicity relevance, negative keywords are added.
Negative keywords allow you to exclude search criteria out of your campaigns and help you concentrate only on your clients ' keywords. Effective targeting will take your ad to potential consumers and increase your ROI.
