Which is a run-on sentence?

a.
they practice after school every day; it is very tiring.

b.
they walk every evening, and it relax them.

c.
they took the bus, it took a long time to get home.

d.
they sing in a band, but they haven't had any shows yet.

C. i think because a uses a semicolon and c and d sound right

Which statements describe the relationship of earth and its moon? check all that apply.the moon orbits earth following a nearly circular path.the gravitational pull of earth on the moon is parallel to the velocity of the moon.the moon orbits earth in 1 earth day.the same face of the moon always points toward earth.the moon’s orbit is the result of the interaction between the moon’s inertia and the gravitational force from earth

The correct answer is option a.