Answer:
id.k probably
letter B. (previous question)- The verses which you kindly entrusted to me I am returning at the same time."
or
letter D. (previous question)- "It was a pleasure to me to find in your letter the name of Professor Horacek; I keep for that lovable and learned man a great veneration and a gratitude that endures through the years."
but i think D.
could you explain what we have to do here
when gathering information for anything, you want to make sure your sources are for sure facts and not just stuff people comprise and put together all crazy like. You should avoid searching for information online and maybe open up a book or go to the library. If you do choose to research online, I certainly do not recommend this website or wikipedia. Both sites have many cons and are just here to give an idea, not an answer.