pliss tolong bantu jawab yg benar

kalo bagi saya jawabannya a

Benda 1:
[tex]S(t) = 4t \\ v(t) = dS / dt \\ v(t)=d (4t)/dt \\ v(t) = 4 \\ v = konstan ( GLB) \\ \\ benda 2 \\ S(t)= t^{2} \\ v(t) = d( t^{2} )/dt \\ v(t) = t \\ v = tdk konstan, (GLBB, dipercepat )[/tex]