Double-click the boundary to the right of the column heading.
Here to relax my mind a bit
M. Porter, Senior Executive, Master of Art, San Jose
Answered Jan 03, 2019
The answer to this is B. if you would read the directions carefully, letter A says that you have to do a single click then go to the left. Your main intention is to widen the column that you are using to fit the details that you will place.
Why do you need to go to the left then? Letter C says that you can just click ALT and single-click anywhere in the column. The column would need the right direction so that it can be widened or narrowed depending on your needs.
Since you are widening the column, double-clicking will allow you to have better control over how wide the column is going to be. You can adjust it accordingly depending on your needs.