Answer:
A. To isolate errors in the outcomes of code.
<em>Hope this helps! ^-^</em>
<em>-Isa</em>
Answer: This problem statement does not provide a useful issue statement.
This would be copy and paste.
When you select a text, you can use your keys CTRL and C to copy that same selected text. After this, you can use the paste feature by selecting CTRL and V. Doing this, your selected text will be copied and pasted to a certain location.
I suggest you to read OpenSSL changelogs to make it more clear. As there's not enough space to describe how it works. But heartbleed resistan version was 1.0.2, as I know.