When tossing a coin, the order HHHHTTT is just as likely as HTHTHTH

Why is it that Marquita demonstrates inattentional blindness to her husband when he is discussing a shopping list with her while she is checking her Facebook account for new updates?

a. We can only effectively process parallel sensory channels if they relate to the same topic, otherwise the sensory inputs can interfere with each other. If Marquita tries to do both, she will accomplish neither. b. The human sensory systems of receptive vision and receptive hearing use the same part of the brain, so only one can be effectively used at any given moment. This is why she cannot read one thing and listen to her husband at the same time. c. Our ability to process multiple types of sensory input is limited by our willingness to attend equally to those different stimuli. Marquita is less interested in her husband's conversation, so she misses most of what he is saying. d. Inattentional blindness serves the evolutionary purpose of helping us attend only to threatening or noxious stimuli, so Marquita is prioritizing finding any potentially negative posts on her Facebook account.

Dr. Francis randomly assigned puppies to one of two conditions. Group 1 grew up with the ability to choose when they would receive dog biscuits, while Group 2 had no control over when they would receive the dog biscuits

In this scenario, Group 2 would be a) more likely to be aggressive. b) less prone to neuroticism. c) more likely to show high levels of behavioral inhibition. d) more likely to display high levels of anxiety.