Which of the following options about the simple harmonic motion of a mass on a spring is incorrect? Option 1 - During os

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Which of the following options about the simple harmonicmotion of a mass on a spring is incorrect?
Option 1 - During oscillations, total energy is conservedbut mechanical energy is not.
Option 2- The acceleration of the mass is proportional toits displacement (but in the opposite direction).
Option 3 - A larger mass would oscillate with a longerperiod.
Option 4 - For small amplitudes, the period of theoscillation does not depend on the amplitude.
Option 5 - There is 90◦ phase difference between the velocityand the acceleration of the mass.
An explanation for which one is false and why the other fouroptions are true would be appreciated - thanks!