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Match the entries in Group I with the process parameters in Group II.

Group I Group II

P. Clark electrode 1. Liquid level

Q. Redox probe 2. Dissolved oxygen concentration

R. Load cell 3. Vessel pressure

S. Diaphragm gauge 4. pH (anaerobic process)

A. P-2, Q-1, R-3, S-4

B. P-4, Q-2, R-3, S-1

C. P-2, Q-4, R-1, S-3

D. P-2, Q-1, R-4, S-3

Answer: Option C

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Group I	Group II
P. Clark electrode	1. Liquid level
Q. Redox probe	2. Dissolved oxygen concentration
R. Load cell	3. Vessel pressure
S. Diaphragm gauge	4. pH (anaerobic process)