Blood is a red, viscous connective tissue flowing within blood vessels. Which of the following statements are TRUE?

(A) The average volume in a healthy adult male and female is about 5 and 4.5 liters respectively.
(B) The plasma contains 70% water, 20% proteins, nutrients, salts, and hormones.
(C) The hemoglobin binds oxygen in the lungs to transport it throughout the body.
(D) The red blood corpuscles act as the body's defense mechanism against infections.

Choose the correct answer from the options given below:

(A), (C) and (D) only

The correct answer is Option (3) → (A), (C) and (D) only

Note: Given answer is as per NTA which is apparently wrong, The correct answer should be Option Option 2 ((A), (B) and (C) only) as explainend below.

(A) The average volume in a healthy adult male and female is about 5 and 4.5 liters respectively. → True. The average blood volume is approximately 5 litres in males and about 4.5 litres in females, so the statement is correct.

(B) The plasma contains 70% water, 20% proteins, nutrients, salts, and hormones. → True. Plasma is mainly composed of water along with proteins, nutrients, salts, and hormones. Although exact percentages may vary, the statement is broadly correct.

(C) The hemoglobin binds oxygen in the lungs to transport it throughout the body. → True. Hemoglobin present in red blood cells binds oxygen in the lungs and transports it to different parts of the body.

(D) The red blood corpuscles act as the body's defense mechanism against infections. → False. Red blood cells do not provide defense; this function is performed by white blood cells, which protect the body against infections.