Read the paragraph.
(1) Along the old pioneer trails in the West, you will find a huge rock that looks like the back of a turtle’s shell. (2) During the 1800s, pioneers—many from eastern states like Pennsylvania—would anxiously await the day they would arrive at this special landmark. (3) They knew that if they arrived there by Independence Day, then they would likely be able to make it to California and Oregon before the winter storms began to arrive. (4) Independence Day is the Fourth of July. (5) Because of this, the landmark was named Independence Rock.
Which revision that combines sentences 3 and 4 into one sentence best improves the logical relationship between the two sentences?