Please answer part c

Pan American Refineries, headquartered in Houston, must decide among three sites for the construction of a new oil-processing center. The firm has selected the six factors listed below as a basis for evaluation and has assigned rating weights from 1 to 5 on each factor. Subhajit Chakraborty, the CEO, has rated each location for each factor on a 1 to 100 point basis. In the table below, the rating weights and the rating value for each of the locations on the factor are presented: a) Based on the given information, the best location for Pan American Refineries is , with a total weighted score of (Enter your response as an integer.) b) If Location B's score for Proximity to port facilities was reset at 90, it will have a new total weighted score of (Enter your response as an integer.) c) Location B will lower its ranking as soon as its score (within the confines of the 1 to 100 point basis) on Proximity to port facilities is less than . (Enter your response as an integer.)