Consider the following statements concerning centrifugal governors:

1). The slope of the controlling force curve should be less than that of the straight line representing the centripetal force at the speed considered for the stability of a centrifugal governor 2). Isochronism for a centrifugal governor can be achieved only at the expense of stability 3). When sleeve of a centrifugal governor reaches its topmost position, the engine should develop maximum power Which of the statements given above is/are correct?

(a) 1 and 2

(b) 2 and 3

(c) 2 only

(d) 3 only.