A concrete statement can be considered as a 'solid' statement. This means that the sentence must contain hard facts to manifest the credibility of the statement. As much as possible, you give specific examples and provide evidence for this. From the choices, the answer would be D.
This is very easy you should read over it again
I believe the answer is A). Smart phone
Answer:
The children in the park are playing.
Explanation:
It could be 2 answers. Either 'In fact" or "In other words"
Pick the one that sounds better to you