Question

choose the sentence that is punctuated correctly. she was not sure if she had the necessary mathematical abilities to be an engineer, so she pursued a graduate degree in english. she was not sure if, she had the necessary mathematical abilities to be an engineer, so she pursued a graduate degree in english. she was not sure if she had the necessary mathematical abilities, to be an engineer, so she pursued a graduate degree in english. she was not sure if she had the necessary mathematical abilities, to be an engineer so she pursued a graduate degree in english.

Explanation:

• The first sentence uses proper punctuation: a comma before the coordinating conjunction "so" to connect two independent clauses, and no unnecessary commas interrupting dependent clauses or phrase connections.
• The second sentence incorrectly places a comma right after "if", which disrupts the dependent clause structure.
• The third sentence adds an unnecessary comma after "abilities", which incorrectly splits the phrase "abilities to be an engineer".
• The fourth sentence omits the required comma before "so" connecting two independent clauses and also adds an incorrect comma after "abilities".

Answer:

A. She was not sure if she had the necessary mathematical abilities to be an engineer, so she pursued a graduate degree in English.