The great hall is open to the public, you must reserve a spot in advance.

how is the comma used incorrectly in the sentence above?

the comma attempts to separate a compound predicate.
the comma attempts to join two independent clauses.
the comma attempts to set apart an essential element.
the comma attempts to separate a compound subject.

Which options most accurately explain how the author of the war of the worlds uses the crash landing of the spaceship to introduce ogilvy's character? (select all that apply.)the war of the worldsogilvy goes to the site of the crash and is immediately certain that it has been caused by aliens. because of this, he immediately gets the townspeople together to fight. his actions characterize him as brave.ogilvy tries to those inside the cylinder. his actions characterize him as compassionate.ogilvy goes to the site of the crash to explore the area the morning after seeing the shooting star. once there, he examines the cylinder. his actions characterize him as curious.ogilvy runs to the nearest town to get away from the cylinder. his actions characterize him as cowardly.