Hong hikes at least 1 hour but not more than 4 hours. she hikes at an average rate of 2.7 mph. the function f(t)=2.7t represents the distance she hikes in t hours.

what is the practical range of the function?

a) all real numbers from 1 to 4, inclusive

b) all real numbers

c) all real numbers from 2.7 to 10.8, inclusive

d) all multiples of 2.7 between 2.7 and 10.8, inclusive