Найдите произведение дробей: \(\frac{m^2-1}{m-n}\cdot\frac{2m-2n}{m^2+m}\)

• \(\frac{2}{m-n}\)
• \(\frac{2m-2}{m}\)
• \(\frac{m^2-1+2m-2n}{(m-n)(m^2+m)}\)
• \(\frac{m^2-1}{m^2+m}\)
• \(\frac{m-n}{m+1}\)