Give the Domain and Range of the Relation $f ( k )$

Multiple Choice

Give the domain and range of the relation.
-Find $f ( k )$ when $f ( x ) = 3 x ^ { 2 } + 4 x + 5$

A) $9 k ^ { 2 } + 16 k + 25$
B) $3 k ^ { 2 } + 4 k + 5$
C) $3 k ^ { 2 } + 16 k + 5$
D) $3 \mathrm { k } ^ { 2 } + 4 \mathrm { k } + 25$