What effect is achieved by the author's choice to have father mapple sing the hymn? a) it indicates that he must have a decent singing voice. b) it indicates that this devout man's faith has not come without struggle. c) it reinforces the notion that church means little in the lives of these characters. d) it shows music doesn't play much of a role in these characters' lives, except in church.

 B)It indicates that this devout man's faith has not come without struggle.

The hymn includes lines like: "In black distress, I called my God,When I could scarce believe him mine,He bowed his ear to my complaints-No more the whale did me confine". This shows that Father Mapple believes wholly in the strength of God, but the hymn recognizes that there are struggles and they must be overcome. 

So what's needed to be done?

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.