Which of the following statements about Quota sampling and Stratified sampling are TRUE? ( A ) Quota uses convenience sampling from each subgroup, while Stratified uses simple random sampling from each subgroup. ( B ) Quota samples from every subgroup, while Stratified samples only from randomly selected subgroups. ( C ) Quota sampling can assure the representativeness of a sample better than Stratified sampling ( A ) and ( C ) are both true statements ( A ) , ( B ) , and ( C ) are all true statements