The major criticism of service contracts is:
a. poor service from repair companies.
b. limited coverage of repairs.
c. weak government regulation of service contract companies.
d. high costs and a low chance of need.

Hello, the answer for you question is in fact D. High costs and low chance of need. I just took the test and I got a 100% on it, so you can trust me. Have a good day.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.

organ system-an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.