It's B. The other answers have the pronouns in the Nominative case.
Although coal, hydrocarbons, iron ore, platinum, copper, chromium, nickel, gold and other minerals have been found, they have not been in large enough quantities to exploit. The 1991 Protocol on Environmental Protection to the Antarctic Treaty also restricts a struggle for resources.
Hi, I have to tell you so many things about this pandemic that’s happening right now in this world. So first of all I can’t go out much, so I am limited to what I eat, I can’t have my choice of dinner because some of the shops are closed. And the second thing is that me and you and our friends can spend time together like we used to. We can’t go to birthday party and etc. But the main problem is money, many people in the world lost their jobs because of limited costumers, and that makes me sad. Even some of the people in my job have lost their jobs, but I am fortunate to still stay in the job. Well I hope you and your family’s doing fine,Bye.