You can eliminate B) because the style manual tells us that we can correct w/o explanation if it's an "obvious typographical error." An obvious typo is not the same thing as an archaic spelling.
... brute force of trial and error instead of game-breaking inferences ... to do these comfortably, without error, within timeframe, upon first attempt ... to require more trial and error/brute force.
See if this method works..it does 90% of the time for me...so at the beginning of every lesson, I let the video run for 5 secs and then pause it, it buffers and does not give the error...
yes. I have to do that to make it work.
the sequence / grouping games and flawed method reasoning.
sometimes the error message is 'video could not be found' and 'video not properly encoded'
@rachelle-1-1 something similar happened to me . I made a silly error. I had set up two separate accounts , one for the free trial and then another when I paid. and I kept on trying to access the paid account with the free trial username/password.