NEET Biology question

Fill up the blanks in the following paragraph by selecting the correct option. The movement of air into and out of the lungs is carried out by creating a (i) between the lungs and the atmosphere. Inspiration can occur if intra-pulmonary pressure is (ii) than the atmospheric pressure. Expiration takes place when the intra-pulmonary pressure is (iii) than the atmospheric pressure. Inspiration is initiated by the (iv) of diaphragm which (v) the volume of thoracic chamber in the antero-posterior axis.

• (A)(i)-concentration gradient, (ii)-less, (iii)-higher, (iv)-relaxation, (v)-increases
• (B)(i)-concentration gradient, (ii)-higher, (iii)-less, (iv)-contraction, (v)-decreases
• (C)(i)-pressure gradient, (ii)-higher, (iii)-less, (iv)-relaxation, (v)-decreases
• (D)(i)-pressure gradient, (ii)-less, (iii)-higher, (iv)-contraction, (v)-increasesCorrect