There is no way to define the 'best' site. Each site offers a unique experience along with the fact it might not display the same information as the other ones. The APEX site (As far as I know, it is a school test site) Won't really be able to help unless you are willing to do a few tests. I would go for Scholarshipexperts.com
Answer:
I'm guessing C
Explanation:
It just makes the most sense to me, but please don't be really confident with it, I'm in 6th grade. I'm really sorry if I'm incorrect.
Answer:
Bandwidth describes the maximum data transfer rate of a network or Internet connection. ... For example, a gigabit Ethernet connection has a bandwidth of 1,000 Mbps (125 megabytes per second). An Internet connection via cable modem may provide 25 Mbps of bandwidth.