Full Length Practice Test 2. Verbal section (hard) question 7

For this RC question, I knew I had to look for the answer in the second paragraph. I selected option A because of the evidence. Looking back at it, maybe it’s an exaggeration and the option is too strong to be picked. But then how do I arrive at the solution? I am not able to select an answer with certainty. Please help.
Looking forward to an answer. Thanks :smiley:

Hi, I think the issue is “many OTHER”, we only know about phone numbers