Assertion (A): The probability that a leap year has 53 Sunday is $\dfrac{2}{7}$.

Reason (R): The probability that a non-leap year has 53 Sunday is $\dfrac{5}{7}$.

1. Assertion (A) is true, but Reason (R) is false.

2. Assertion (A) is false, but Reason (R) is true.

3. Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A).

4. Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).

Assertion (A): Two players Sania and Asma play a tennis match. If the probability of Sania winning the match is 0.79, then the probability of Asma winning the match is 0.21.

Reason (R): The sum of probabilities of two complementary event is 1.

1. Assertion (A) is true, but Reason (R) is false.

2. Assertion (A) is false, but Reason (R) is true.

3. Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A).

4. Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).

Assertion (A): In a throw of two fare points once, the probability of getting one head is $\dfrac{1}{2}$.

Reason (R): In a throw of two fare coin, the sample space is HH, HT, TH, TT.

1. Assertion (A) is true, but Reason (R) is false.

2. Assertion (A) is false, but Reason (R) is true.

3. Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A).

4. Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).

Assertion (A): The probability of getting a prime number, when a die is thrown once, is $\dfrac{2}{3}$.

Reason (R): On the faces of a die, prime numbers are 2, 3, 5.

1. Assertion (A) is true, but Reason (R) is false.

2. Assertion (A) is false, but Reason (R) is true.

3. Both Assertion (A) and Reason (R) are correct, and Reason (R) is the correct reason for Assertion (A).

4. Both Assertion (A) and Reason (R) are correct, and Reason (R) is incorrect reason for Assertion (A).