Intro to Material Performance 2nd Quiz

The second quiz in ''Intro to Material Performance'' course has some issues

It has some questions to be answered in essay format, I tried writing in my own words but marks not graded then I tried to write same previous quiz answers in different ways nothing worked now my 5 attempts over; what should I do now the course is at 90% and it would never be completed?

the above picture shows what I have typed which is showing as correct answer but awarded -ve marks!


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