Hello!
your answer is participial phrase
<h3><u>
Answer:</u></h3>
A and D- This led to, Consequently
<h3><u>
Explanation:</u></h3>
The sentence test- There was a cause, this led to an effect
There was a cause and, consequently, an effect.
Different from is a contrast phrase, and I think th is a typo.
Both are correct, and you said answers, plural