Q6Single correct4 Marks3 Sep 2023

Let $X$ and $Y$ be two rows in the "Scores" table. We call $X$ and $Y$ partially matching if student $X$ and $Y$ are either from the same city or have the same total marks but not both. Let partialMatch(X, Y) be a procedure to find whether $X$ and $Y$ are matching. Choose the correct implementation of the procedure partialMatch.

A

``` Procedure partialMatch(X, Y) A = False, B = False if(X.CityTown == Y.CityTown){ A = True } if(X.Total == Y.Total){ B = True } if(A and B){ return(True) } return(False) End partialMatch ```

B

``` Procedure partialMatch(X, Y) A = True, B = True if(X.CityTown == Y.CityTown){ A = True } if(X.Total == Y.Total){ B = True } if(A or B){ return(True) } return(False) End partialMatch ```

C

``` Procedure partialMatch(X, Y) A = 0, B = 0 if(X.CityTown == Y.CityTown){ A = 1 } if(X.Total == Y.Total){ B = 1 } if(A + B == 1){ return(True) } return(False) End partialMatch ```

D

``` Procedure partialMatch(X, Y) A = 0, B = 0 if(X.CityTown == Y.CityTown){ A = 1 } if(X.Total == Y.Total){ B = 1 } if((A - B) > 0){ return(True) } return(False) End partialMatch ```