According to conflict theory, how does the structure of society develop?

• a.)Society progresses when there are no differences between people and in society. 
• b.)The people and institutions in society form a machine with interlocking parts that work together to keep the system going.
• c.)Society is constructed through a series of one-on-one interactions between people playing roles.
• d.)The disagreements and differences between groups in society allow people to drive change in society.