PLEASE HELP!!!!!

WICH of the following best describes the system of slavery in the first slavery in the first few decades of the American colonies?

Aindentured servants became enslaved after four to seven years

BAfricans could not work as indentured servants; they were only enslaved

c)Enslaved people were enslaved for life, but their children were born free

Dboth Africans ans whites worked as indentured servants, not as slaves