Please complete 1A, 1B, 1C. Will rate positively if all complete/correct.

1C(Continuing 1B) Draw the corresponding parse tree.

1A. Write BNF to define the syntax for the language used to assign an result to 1 or more s implied by the following examples LET x = 1+2; LET x.xaZ = 0; KassignmentStatement> ::- 1 B. Complete the derivation started below of the sentence x +1*x*-2+3. :i= 1 I 2 I 3