A) The demand curve can be upward-sloping
B) The supply curve can be upward-sloping
C) The supply curve could not be upward sloping
D) It is not possible to calculate either demand or supply elasticities
A) The demand curve can be upward-sloping
B) The supply curve can be upward-sloping
C) The supply curve could not be upward sloping
D) It is not possible to calculate either demand or supply elasticities