Consider the following standard entropies at 298 K: Br2(𝑙) 152.3 J/mol-K, Br2(𝑔) 245.3 J/mol-K, I2(𝑆) 116.7 J/mol-K, I2(𝑔) 260.6 J/mol-K. Which of the following statements about these entropies is or are true?

a. The standard entropy of I2(𝑔) is greater than that of I2(𝑆) because gases have more degrees of freedom than do solids.

b. The standard entropy of I2(𝑔) is greater than that of Br2(𝑔) because 𝐼2 has a higher molar mass than does Br2.

c. The standard entropy of Br2(𝑙) is greater than that of I2(𝑆) because Br is more electronegative than I.