Let L, and L2 be the languages defined as follows: L1 ={ xe{0,1}* | x has an odd number of Os}. L2 ={ 0"1m0" | n, m 20} Which of the following context-free grammars generates the language L1 U L2? (Here all uppercase letters are variables) O E- 1E| OF F 1F| OE je A- OAO | B B - 1B|E OS-EJA E → OF | 1E F- OE | 1F|E A- OAO | 1A |E OS- S1 | S2 S1→ 00S | 15 | 01A| 10A | B A- 10S | 01S B -1|8 S2 → OS,0| A2 A2 → 1| S2|E S- EJA E - 1E | OF F 1F| OE je A- OAO | B B - 1B|E

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