44) Having the following information about two materials: - Material (1): Isotactic polystyrene with a density of 1.12g/cm3 and a weight-average molecular weight of 150,000g/mol. - Material (2): Syndiotactic polystyrene with a density of 1.10g/cm3 and a weightaverage molecular weight of 125,000g/mol. a) Circle the most correct answer: has higher density and higher weight-average molecular weight. b) Material (1) is expected to have lower melting temperature because it has higher density and higher weight-average molecular weight. c) Material (1) is expected to have the same melting temperature as Material (2) because both materials are made of the same mers. d) Not enough information is given to expect which of the two materials have the higher melting temperature