In a scale drawing that is a dilation which increases the size of the object it represents, the scale factor must be greater than 1.
Looking at the options provided:
- 13:10 is greater than 1.
- 5:1 is also greater than 1.
- 0.5:1 is less than 1 (decreases size).
- 2:3 is also less than 1 (decreases size).
Thus, the scale factors that would accurately represent an increase in size are 13:10 and 5:1. If you must choose one option, either of those two would be correct, but if you need to just pick one from your list, you can select 5:1 as it is directly indicating a 5fold increase in relation to 1.