All of the following are true according to the mississippi "black code" (1865), except:
a. all freedmen, free negroes, and mulattoes shall have the right to vote in municipal, county, state, and federal elections.
b. no freedman, free negro, or mulatto, not in the military service of the united states government, and not licensed so to do by the board of police of his or her county, shall keep or carry fire‑arms of any kind, or any ammunition. .
c. it shall not be lawful for any freedman, free negro, or mulatto to intermarry with any white person.
d. all contracts for labor made with the freedmen, free negroes, and mulattoes for a longer period than one month shall be in writing, and in duplicate. .

Option: a. All freedmen, free negroes, and mulattoes shall have the right to vote in municipal, county, state, and federal elections.

Explanation:

The Mississippi Black Code were restrictive laws intended to limit African Americans rights. The law ensured their availability as cheap labor after the Civil War, which abolished slavery in the South. The codes gave no rights to the African Americans to vote but forced them in working in plantations as labors.  

the second significant cause of the great migration was the desire of black southerners to escape segregation, known euphemistically as jim crow. rural african american southerners believed that segregation - and racism and prejudice against blacks - was significantly less intense in the north.

the answer is jerusalem