Match the compounds given in column-I with the number of carbon atoms present in them which are listed under column-II. Choose the answer which gives the correct combination of alphabets of the two columns.Column - I Column - IIA. Oxaloacetate p. 6 - C compoundB. Phosphoglyceraldehyde q. 5 - C compoundC. lsocitrate r. 4 - C compoundD. a-Ketoglutarate s. 3 - C compound t. 2 - C compoun

• A. A = r, B = s, C = p, D = q
• B. A = r, B = t. C = p, D = q
• C. A = q. B = s. C = p. D = t
• D. A = s, B = t. C = q, D = r