The climax of a story is what the story revolves around, or the problem the character(s) is facing.
In My Last Duchess, the painting and the art represent something that is long gone, most noticeably, his love for art. He claims that he once loved art but now that love is gone and he hates it as much as it hates him.
B
because when describing a noun with adjectives, you can say: that is a green salad. but if the salad is also big I can say: that is a big, green salad.
Dear ______,
I was just writing this to express my gratitude and appreciation! Thank you so much for everything you do! It really means a lot to me and I don't know how I can ever repay you! I am thankful for how you ______, ________, and ______.
Then when you get to the body paragraphs you could repeat one reason you were thankful for them and explain more deeply in each paragraph. Make sure to use a lot of positive adjectives to make it more wordy! Then close of in a closing paragraph. For example....
Again thanks so much for everything! Your kindness means everything to me and everyone around you!
I wish you all the best and more,
_____________