Solar energy. for a roof solar collector in la, what direction should the collector face to maximize energy? (bonus) for winter, what angle of roof would intercept the most energy facing this direction for la and vancouver (about)?

Ithink the answer is d.

Many foreign companies buy/build hotels in areas therefore most of the profit from tourism goes to these companies rather than the local economy or local people. 
also, these foreign companies might only employ foreign workers with experience meaning they receive more pay whereas local people would be employed for low skilled jobs and lower pay. 

thats all i can think hope it : )