Communication inequalities include two aspects: 1) the differences among social classes and groups in the generation and distribution of information; 2) （ ）.

A、The access to information and the capacity to use the information among individuals.;

B、The understanding of information and the capacity to access the information among families.;

C、The access to information and the capacity to share the information among companies.;

D、The process of information and the capacity to understand the information among individuals.