The following statement is true.
The preposition in this case is From while the prepositional phrase is From China as it consists of the preposition from and the noun China.
I'm pretty sure the correct answer is B.
Answer:
Grunkle Stan Pines baked a cake but forgot to add sugar; therefore, he took one bite and spit it out.
OR
Grunkle Stan Pines baked a cake but forgot to add sugar. Therefore, he took one bite and spit it out.
Explanation:
What is "Grinkle Stan Pines" ??
"Therefore" is not the appropriate word here, but your instructions say to correct only capitalization and punctuation errors.