If I have a A+ in a class and get a bad score on a quiz that's worth 10% of my grade, would my grade go down a letter grade or a few points

The only way you'd go down a whole letter grade is if you scored 0 points

a   church leadership can be defined as a process of influencing other people to work together to accomplish a desired purpose.

in this case one person acting as a role model and influencing other to work as one person to accomplish a certain misson or purpose.

this can be either leading people to do the work of god

i believe your answer is d)