The pitching of a ship in the ocean is an oscillatory periodic motion. A ship is pitching \[6{}^\circ \] above and \[6{}^\circ \] below with a period of 20s from its horizontal plane. Consider the following statements in this regard: 1. The motion has a frequency of oscillation (i.e. pitching) of 3 cycles/minute. 2. The motion has an angular frequency of 3.14 rad/s 3. The angular velocity of precession of ship?s rotor is \[\frac{\pi }{300}\] rad/s 4. The amplitude of pitching is \[\frac{\pi }{30}\] rad Which of these statements are correct?

• A. 1 and 2
• B. 1, 2 and 4
• C. 2, 3 and 4
• D. 1, 3 and 4