David,

#580560
Jack Martin
Participant

David,

While we are all fallible, your right it depends on how the question is worded.

When I was studying at the OU, this is something we had to understand and master, in order to get good scores on tutor marked assignments and exams.

I agree its a very interesting question, which has only recently been researched and answered correctly.

We have all learned something new !

Regards,

Jack

Essex UK