Ange8669 Ange8669 29-12-2023 Computers and Technology contestada Which of the following are elements of the Backus-Naur form for the production of signed integers in decimal notation? a) ::= | - b) ::= 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 c) ::= + d) ::= - |