Thermodynamics, $2$nd law.

For this problem, i am trying to work out the proper sets of equations using a constant pressure entropy change where the change in entropy equals the constant pressure heat capacity x the natural log of the T$2/$T$1.$

The correct answer for the minimum is $132$K$,$ and maximum is $617$K$,$ and results from using the object with the lowesr mass x heat capacity product. other answers on Chegg are incorrect and are done improperly.