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.
Tough Fran and I worked together, my science teacher gave Fran a better than he gave me.
Safety tube for the water
Answer:
You would need to give examples as to which characters you are referring to.