What is the radius and diameter of the following circle of 13 cm

In 1870, which path would settlers moving west from el paso to los angeles have followed? a) old spanish trail b) gila trail c) california trail d) oregon trail

Witch one is it soo it the the question b. a,b, c,d

Hurricanes a. usually form over land b. usually intensify over land c. gain strength from ocean heat d. usually form over the poles