(Adding and Subtracting with Scientific Notation MC)

Simplify (2.5 x 10−9) − (5.8 x 10−8). Write the final answer in scientific notation.

A)−5.55 x 10−8
B) −5.55 x 10−9
C) −3.3 x 101
D)−3.3 x 10−1
explain pls