As per the site, only the best 3 out of 4 assignments will be taken. Can the course team clarify the purpose of the Catch up KQ? The lowest KQ is anyway not being considered.
Besides, are the weeks graded in a vertical manner or horizontal manner. i.e. are all the KQs, AQs, RQs graded together or are they graded on a per week basis. These are silly things, but still it would be good to know.
V