Robert e lee began his military career

~ Assigned as military engineer in US army

~ Distinguished himself as a key figure in Mexican American war Important in several American victories

~ Found key strategic routes that helped America win the Mexican American war

~ Was granted many military awards during his service in US military

~ Met and worked with Ulysses S. Grant during his US military career

~Ultimately resigned from being Civil War Commander to join forces with his native state and was later awarded general-in-chief of all Confederate land forces

~Continuously defeated federal armies in Virginia but was forced to surrender to the Army of North Virginia after several years of fighting and gradual decrease in men and constant defensive actions

~Entered the Engineer Corps in 1829 which led to the promotion from second lieutenant to captain in posts from Georgia to New York

~ Was a primary leader in the Mexican War in 1846 as he invaded Veracruz and captured Mexico City

Explanation:

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the answer is d. party organizers, volunteers, voters and elected officials.