Find the Product and Write the Result in Standard Form $$( 2 + 5 i ) ( 2 - 5 i )$$

Multiple Choice

Find the product and write the result in standard form.
- $$( 2 + 5 i ) ( 2 - 5 i )$$

A) 29
B) $4 - 25 \mathrm { i } ^ { 2 }$
C) $- 21$
D) $4 - 25 \mathrm { i }$