Factor completely.
m⁴-n⁴
A. (m²-n²)(m+n)(m-n)
B. (m²+n²)(m+n)(m-n)
C. (m²+n²)(m-n)²
m⁴-n⁴
A. (m²-n²)(m+n)(m-n)
B. (m²+n²)(m+n)(m-n)
C. (m²+n²)(m-n)²