Find an Equation of the Parabola Described and State the Two

Find an equation of the parabola described and state the two points that define the latus rectum.
-Focus at $( 0,4 )$ ; directrix the line $y = - 4$

A) $y ^ { 2 } = 4 x$ ; latus rectum: $( 9,2 )$ and $( - 9,2 )$
B) $x ^ { 2 } = 4 y$ ; latus rectum: $( 2,4 )$ and $( - 2,4 )$
C) $x ^ { 2 } = 16 y$ ; latus rectum: $( 8,4 )$ and $( - 8,4 )$
D) $x ^ { 2 } = 16 y$ ; latus rectum: $( 4,8 )$ and $( - 4,8 )$