Final answer:
The San Francisco 49ers and the Dallas Cowboys were especially strong NFL teams during the 1980s and 1990s, winning multiple Super Bowl championships. The option (1) is correct.
Step-by-step explanation:
The San Francisco 49ers and the Dallas Cowboys were especially strong NFL teams during the 1980s and 1990s. The 49ers won five Super Bowl championships during that time period.
The Cowboys won three. Both teams had dominant players and successful coaches, which contributed to their success. Therefore, option (1) is correct.