Which is a correctly written sentence, not a run-on?

a.
our cousins are coming for a visit we plan on taking them to the zoo and the museums.

b.
our backyard was all soggy from the rain, the dog's paws were all muddy.

c.
the gate to our backyard had been left open our dogs got out while we were gone.

d.
our car wouldn't start, so dad called a tow truck to take it to the mechanic.

Mr and mrs van daan murmur their welcome what are the playwrights indicating by using the word murmur?

1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate. which statement about this paragraph is accurate?

What does moon shadow think about where the tang people live (text evidence)