I believe this is about you own opinion?
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.
THE ANSWER IS B, SECOND CHOICE
The word alone can be read several ways this is suggested by "To me alone..." she is stating that only in her opinion it is a time or pause. Hope this helps!
Sure,
Answer:
He said to her if he was really that easy to forget.
-> the sentence involved in this direct speech is a question. "he said to her" does not need to be changed. sentence structure of the question needs to be changed, not like your usual indirect speech sentences.
then, add a if after "he said to her". remember, this is a question.
the word in the sentence, "was" is not a modal verb, therefore it will not be changed. however, of course the word place needs to be switched with the pronoun "he", as we're converting it to a sentence and not a question. so, "if he was really that easy to forget".