Answer:
Right , More
Step-by-step explanation:
Muscles which undergoes contraction usually causes the temperature of their environment to rise as a result of the activity carried out. Such activities also gives rise to an acidic environment because lactic acid is usually common in such muscles as a result of glucose breakdown.
During this phase there is decreased interaction of oxygen and haemoglobin which favors the curve shifting to the right as a result of the hemoglobin releasing more oxygen than binding to it.