When combining two independent clauses, a comma must be placed both before and after the conjunction after the conjunction before the conjunction between the two indpendent clauses in place of the conjunction

When combining two independent clauses, a comma must be placed before the conjuction.

C)

Acquiring english is a way of learning where you learn english by birth, this includes listening to your parents, brothers and sisters and on the whole learning it from the environment around you while mastering standard english need qualified institutes and teachers who make certain programs and syllabus to you master the standard english. this also can include a long session of academic studies before you can master the standard english.standard english is necessary for literary works, official usage and writing materials for standardized publications or when someone needs to speak publicly. in most cases the employers of a company also demand and like the use of standard english from their employees.