Which of the following demonstrates a strengthening effect on behavior? 

George is playing a video game. He presses two buttons simultaneously and sees a door open, a monster appear, and a point awarded. This is an example of a:

Zahira goes to the music store to purchase an instrument. While she is there, she sees a red guitar, a black bass guitar, and a transparent banjo. This is an example of a:

Suzanne is renovating her home. Her designer brings over samples of blue tile, white tile, and floral tile for her kitchen. This is an example of a:

A new smartwatch is available for sale. Tiffany needs a new smartwatch because hers is broken, and she needs to be able to track her fitness activity. Tiffany’s watch being broken is an example of what type of stimulus/condition?

Each morning before work, Akshay sits at his local coffee shop reading the news while a barista makes him a latte. Akshay goes to his parents’ house over the weekend and reads the news from the same news outlet that he reads before work. Akshay feels thirsty and asks his parents if they could make him a latte. This is an example of a(n):

Cristina usually does not need a lighter, but her daughter just gave her a lovely, scented candle for her birthday. Now, Cristina goes to the store to buy a lighter. This is an example of a(n):

Whenever Alyssa rode her bike past her friend’s house after school, her friend’s mother, Melody, always greeted her with freshly baked pie. When Melody became busy remodeling her home, she stopped meeting Alyssa outside with pie. Alyssa no longer rides her bike by her friend’s house. This is an example of:

The bright sun glared directly into Leonard’s eyes as he looked at the lake, and his pupils constricted. Now, his pupils constrict when he looks out towards the lake, even on a cloudy day. This is an example of a(n):            

A test was placed on a desk in front of Mohammed. This is an example of a: