Read the sentence.
because my bike tire was low, it came as no surprise that it went flat just as it began to rain.
which is the best way to correct the pronoun reference problems in this sentence?
because my bike tire was low, it came as no surprise that my tire went flat just as it began to rain.
because my bike tire was low, i wasn't surprised that it went flat just as it began to rain.
it came as no surprise that because my tire was low, it went flat just as it started to rain.
it came as no surprise that my low bike tire went flat just as the rain began to fall.