The details we know for sure about Mabel is described in the first paragraph.
"She has met Mabel, a kind elderly blind lady who has asked Casey to spend an hour each day helping her around the house".
The answer is 'D' (it says the former, referring to MLK)
Pada masa kini, for Margherita telah berfungsi sebagai tempat wisata atraksi bagi turis.
Selain itu, Fort Margherita juga berfungsi sebagai Landmark kebanggan masyarakat Sarawak.
hope this helps