Of the two examples of markup (microdata, schema) code below, which of the two is better designed for its purpose of Q&A, and what might be suggested to improve upon these lines of code (context: questions and answers within article content.

RedFrog

ANSWER SEEN 'WITHIN THE QUESTION' BRACKET

So you ask, why is the sky blue?
Well, the answer is not so simple; In the day-time, when it's clear and cloudless,
the sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light.
When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

See Structured Data Testing Results

'QUESTION' AND 'ANSWER' IN 2 SEPARATE BRACKETS

Why Is The Sky Blue?

Well, the answer is not so simple; In the day-time, when it's clear and cloudless,
the sky is blue because molecules in the air scatter blue light from the sun more than they scatter red light.
When we look towards the sun at sunset, we see red and orange colours because the blue light has been scattered out and away from the line of sight.

See Structured Data Testing Results

Thanks, Mark