Answer:
Hello. You did not enter the answer options, but the word that best fits the blank is "evidence".
Step-by-step explanation:
The meaning of "Evidence" serves to designate something that is clear, notorious, highlighted. In other words, it is what implies, which points, which clarifies, which highlights, which makes it obvious. Evidence is something that is visible to everyone, that is unmistakable, that is clear. It is a test, which is in the character of what is evident, something that left no doubt.
The term evidence can be associated with evidence, being that which demonstrates the existence of something. When Ms. Brown told San that he could not collect any evidence that aliens actually lived on Earth, she was saying that it was impossible for him to show evidence and evidence that the aliens actually lived on earth.