A Metal Wire Has a Resistance of 25 $\Omega$ Under Room Temperature Conditions of 25°C

A metal wire has a resistance of 25.00 $\Omega$ under room temperature conditions of 25°C. When the wire is heated to 85°C the resistance increases by 1.95 $\Omega$ . What is the temperature coefficient of resistivity of this metal?

A) 1.3*10 ^{- 3} (°C) ^{- 1}
B) 1.5 *10 ^{- 3} (°C) ^{- 1}
C) 5.0 *10 ^{- 4} (°C) ^{- 1}
D) 2.5*10 ^{- 3} (°C) ^{- 1}