Bobby used *blank* option 1-a direct proof. Option 2-An indirect proof.
because *blank*option 1-the final statement is an impossibility. option 2-each statement follows logically from previous statement. Elaine used *blank* option 1-an indirect proof. option 2-a direct proof. because *blank* option 1-each statement follows logically from the previous statement. option 2- the final statement is an impossibility
Can someone fill in the drop down menu?
