0.4x + 5.6 < 2.4 Which set of values contains possible solutions for x?

A.
{-9, -12, -13}

B.
{8, 13, 15}

C.
{-8, -13, -15}

D.
{9, 12, 13}

i need help plese and asap

Here is my question! jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?