Which of the following statements is correct with reference to the Karachi Session of the Congress (1931)?

The Gandhi-Irwin Pact was ratified

The correct answer is Option 1 - The Gandhi-Irwin Pact was ratified

Out of the options listed, only the Gandhi-Irwin Pact is related to the Karachi Session of the Congress (1931).

Gandhi-Irwin Pact was ratified: This pact was signed in March 1931, and the Karachi Session likely ratified it.
Mahatma Gandhi presided over the session:  In 1924, Mahatma Gandhi presided over the Belgaum session of the Indian National Congress. The Belgaum session was the only Congress session presided over by Mahatma Gandhi.
Khilafat movement was launched: This movement began in 1919.
Quit-India Resolution was passed: This resolution came much later in 1942.