Conclusion: Substance A and Substance B have the same specific heat capacity.

Explanation:

* Specific Heat Capacity: This is a property of a substance that tells you how much heat energy is required to raise the temperature of 1 gram of that substance by 1 degree Celsius (or 1 Kelvin).

* Equal Heat, Equal Temperature Change: The fact that both substances experience the same temperature increase when given the same amount of heat means they require the same amount of energy to achieve that change.

* The Equation: The relationship between heat (Q), mass (m), specific heat capacity (c), and temperature change (ΔT) is:

Q = m * c * ΔT

Since Q and ΔT are the same for both substances, and the mass (5 grams) is also the same, the only way for the equation to balance is if the specific heat capacity (c) is equal for both substances.