Answer: d
Explanation: I mean its either d or c and im 99 percent sure its d
Hey there!
The usual length is about 3 hours
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Variable ratio
Among the reinforcement schedules, variable ratio is the most productive and the most resistant to extinction. Fixed interval is the least productive and the easiest to extinguish (Figure 1).
Males and females have been living, working, and playing side-by-side
since a young age, making it inevitable that they interact with one
another.
At school, we start to form our own gender groups where
we take an interest in those who act like we do. It is during puberty
that boys and girls start to see each other as potential dating partners
(circa awkward sixth grade school dances) because they don’t really
know one another as friends. However, when placed in these social
contexts, the sexes learn to understand and communicate with each other.
When we begin to look for friends of the opposite-sex,
or cross-sex friendships, we are seeking “chemistry”— or that special
“click” we have with someone that causes us to want to spend more time
with him or her. We like how this person makes us feel when we hang out
with them, and soon this individual becomes synonymous with fun.