Deferred Service Revenue at year$-$end

Case A: $$4,200$ was credited to Service Revenue during the year.

Case B: $$4,200$ was credited to Deferred Service Revenue during the year.

$\backslash$table$[[$Ref$.,$Account Name,,Dr$.,Cr.],[$Case A$,$Service Revenue,$**,2,100,0],[,$Deferred Service Revenue,$,0,2,100]]$

Balance of Deferred Service Revenue at year$-$end: $

$\backslash$table$[[$Ref$.,$Account Name,,Dr$.,Cr.],[$Case B$,$Deferred Service Revenue,$**,2,100,0],[,$Service Revenue,$,0,2,100]]$

Balance of Deferred Service Revenue at year$-$end: $

Marks for this submission: $\frac{0\mathrm{.}50}{1\mathrm{.}00}.$