Answer:
A
Explanation:
It's not the following because:
B- visual appeal doesn't really matter when you're getting a job done in terms of programming
C- auto completion doesn't help with debugging it just ensures there's no syntax errors in the first place
D- it could be this, but seasoned coders also use highlighting and autocompletion so I thought A would be a better fit to encompass all coders
E- the editor features doesn't impact the machine at all, it will always be converted to binary so it wouldn't make it easier at all