Use the Indicated Property to Write a New Expression Equal $3(\mathrm{r}+\mathrm{k})$

Multiple Choice

Use the indicated property to write a new expression equal to the given one. Simplify the expression if possible.
- $3(\mathrm{r}+\mathrm{k})$ ; distributive

A) $r(3+k)$
B) $3 r-3 k$
C) $3 r+3 k$
D) $3 r+k$