The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, its new equivalent becomes R₁ and if it is connected in series to the group, it new equivalent becomes R₂. Then

• A

  R₁ > R or R₂ > R

• B

  R₁ < R or R₂ > R

• C

  R₁ > R or R₂ < R

• D

  R₁ < R or R₂ < R