Can someone help me with this?

A and E

When doing problems like these it is easier just to see what numbers are divisbale by the ration.

Example:

A: 21/30

21 is divisable by 7 and 30 is divisbale by 10

E: 35/50

35 is divisable by 7 and 50 is divisbale by 10

the highest percentage for deaths in construction from highest to lowest is as follows: falls, struck by objects, electrocution, and caught-in/between. these four are collectively known as fatal four.

in the case of falls, the type that is responsible for the overall highest death in the category is falls from roofs.