Patterns of arousal and emotionality that are consistent and enduring in an individual are known as an individual's ) gender
b) temperament
c) intelligence
d) mood

b. temperament  

Explanation:

Temperament is a term used to describe how an individual exhibit inborn traits in response to their environment or world. Temperament is usually innate or unlearned but can be shaped over time.  

A child can be said to have an easy temperament if the child has a general disposition of  a positive attitude and easily adapts to new experiences, or referred to as a difficult child, if the child displays negative attitude and doesn’t adapt easily to new experiences. Slow-to-warm children are inactive with a general negative mood, and adapt slowly to new situations or even withdraw from such. They show a relatively calm response to their environment.  

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

explanation:

okay now i don't know this but for the pints nothing else to say bye