Which are four attributes of a good bug report?

Which are four attributes of a good bug report?
A . Includes code for a proposed fix.
B. Screenshots or other pictures of the bug in action.
C. Expected results and observed results.
D. Explains some new system functionality desired.
E. Provides simple and repeatable reproduction steps.
F. Includes build or version number where bug was found.

Answer: B,C,E,F