Please Solve d and e only. I will give many upvotes as possible if the solution is 100% correct and not similar to the rest of the answers on chegg. I will downvote if you post the same answer. Thank you.

Problem 1 [10pt] We have the following grammar with the start symbol E: E -> D E + EE - E 0 11 21 3| 4 | 5 | 6 | 7 | 8 | 9 D -> a) (2pt) Show a leftmost derivation for the expression 7 +4 - 5"; show every step. b) (2pt) Show a rightmost derivation for the above expression; show every step. c) (2pt) Show two different parse trees for the above expression. d) (2pt) The grammar is ambiguous. Show a new grammar that removes the ambiguity and makes + and - left-associative. Show the parse tree for 7+4 - 5 in your new grammar. Argue why this is the only parse tree in the new grammar. e) (2pt) Show a new grammar that removes the ambiguity and makes + and - right-associative. Show the parse tree for "7+ 4 - 5 in the new grammar