Question

11. A key piece of equipment broke down ........the laboratory session had to be cancelled.
(a) as the
(b) so
(c) so that
(d) none of the above
1 Thu munomor monented the point in class ...the student would fully understand.​

Answer 1

Answer:

Explanation:

Although I believe that (b) so is the right answer, it would be more appropriate to replace so with 'due to which'.  This phrase seems more appropriate.