Contemporary researchers believe that there are three dimensions of temperament, each of which affects later personality development and school performance:
a) easy, slow-to-warm-up, unclassified
b) secure, insecure, disorganized
c) easy, secure, difficult
d) effortful control, negative mood, exuberance

D) Effortful control, negative mood, and exuberance

Explanation:

Effortful control, negative mood, and exuberance these are the three dimension of temperament that affects the personality of a person personality development and school performance.  

Extroversion and exuberance:

It is related to a person positive emotionalize, activity level, and positive mood

Negative affectionate:

It is related to the negative mood, sadness, fear anger and uncomfortable.  

Effortful control:

It is related to the attention shifted and focus, perceptual sensitivity, behavior inhibitory and self-control.

" effortful control, negative mood, exuberance"

Explanation:

" effortful control, negative mood, exuberance"

Effortful control provides the ability to maintain attention on a voluntary basis and to prevent or trigger behavior as needed to adjust to the situation, especially when the individual doesn't want to do so.

Negative impact associated with terror, rage, sadness and distress.The temperament known to be correlated with a risk-taking tendency is exuberance

i do believe   by (keeping an organized record of all sources he or she referenced)good luck.

explanation:

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.