What are the next three letters in this combination? OTTFFSS

One of the researchers mentions that he is looking for "affiliation cues" in the video recordings of the experiment. how would you describe what these affiliation cues indicate?

Hands-on activity: model of a community there are many issues, such as new neighborhoods, infrastructure improvements, and transportation issues that a planner must contend with, especially as populations increase and commuting becomes necessary. explore the occupation of a planner and then consider what an ideal community would look like. evaluate how to arrange all of the necessary aspects of life—home, work, school, shopping, entertainment, etc.—and create a model of that community. select one of the following methods to submit your assignment: make a 3-d model using found objects and other craft items. take a picture and upload the assignment. create a drawing of the ideal community, labeling all of the objects, and then take a picture and upload the assignment. use a computer program such as microsoft word to generate a model community and then attach the file. be sure to label the objects.

The is the size of the opening in the camera that the light passes through. a. shutter b. lens c. aperture d. sensor