Volleyball - underhand serve -

a. what you would do if you make contact with the ball above shoulder level
b. what you would do if you make contact with the ball below shoulder level
c. skill used to finish a point
d. hitting the ball to an empty part of the playing area
e. more difficult of the two types of serves
f. the serve used more by novices
g. the boundary where the serve is made
h. the apparatus used to divide the field of play
i. version of volleyball played six-on-six
j. version of volleyball played two-on-two