Which statement about slavery is accurate?

a. while the greeks and romans had slaves, africans did not enslave people before the sixteenth century.

b. there are no records of slavery before the early 1400s when the portuguese reached africa.

c. for thousands of years all over the world, people had enslaved other people for a variety of reasons.

d. it began in europe in the middle ages and spread to other parts of the world from there.

Horton automatics and the industrial division of the communications workers of america, the union that represented horton’s workers, negotiated a collective bargaining agreement. if an employee’s discharge for a workplace-rule violation was submitted to arbitration, the agreement limited the arbitrator to determining whether the rule was reasonable and whether the employee had violated it. when horton discharged employee ruben de la garza, the union appealed to arbitration. the arbitrator found that de la garza had violated a reasonable safety rule, but “was not totally convinced” that horton should have treated the violation more seriously than other rule violations. the arbitrator ordered de la garza reinstated. can a court set aside this order