Self-management skills...
a. help an individual perform well at school and work.
b. can be useful in altering factors related to making lifestyle changes.
c. are learned primarily from one's parents.
d. are established by a person's genetic profile.

b. can be useful in altering factors related to making lifestyle changes is the correct answer.

Explanation:

Examples of self-management skills are

Self-confidence.

patience.

persistence.

perceptiveness.

resilience.

haile selassie i was the emperor of ethiopia from 1930-1974

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.