The four sentences labelled A, B, C and D, given below in jumbled order, together form a coherent paragraph. Arrange the sentences in the most logical order and choose the sequence that produces the best paragraph.

A. Small boat fishermen on the Konkan coast once spent most of their diesel simply searching for schools of fish.
B. Encouraged by the savings, the fisheries department is extending the advisory service to every landing centre in the state.
C. Marine scientists changed that by broadcasting daily advisories that use satellite readings of sea temperature to point boats towards likely fishing grounds.
D. Boats that follow the advisories now burn nearly forty percent less diesel for the same catch.