Equations of motion — practice question

Which equation for uniformly accelerated motion along a straight line can be found using only the definition of acceleration?

• A$s = ut + \tfrac{1}{2}at^2$
• B$s = \tfrac{1}{2}(u + v)t$
• C$v = u + at$
• D$v^2 = u^2 + 2as$