(b) Explain how the Taylor series expansion of the terms Lo(1ekt) and Lo[kt(1+6kt)3] were used in the linearization of the BOD test data by Harold A. Thomas (1937) in the so called Thomas Slope Method. (6pts) (c) With regard to the problem of time delay between sampling and obtaining a result in the Faecal Coliform test, propose at least 2 possible strategies that could be employed to address this problem. Explain the reasoning behind your proposed strategies. (8pts)