In case the heart pumped more strongly with each beat it would cause an increase in both systolic and diastolic pressure.
Explanation:
To understand this answer we need to analyze the context and the reaction. First of all the hearth pumping would increase the stream of blood and that would not only increase the amount of blood streamed but also the tension the veins and the artery would have. The result of that scenario would an increase in both because the strength inside and outside the heart would increase dramatically at each moment.
