Brady had never been skiing before. She took to the slopes like a natural.
Correct Answer: B
Rationale: The correct answer is 'But.' In this context, 'But' is a conjunction that correctly connects the two independent clauses, indicating a contrast. The first sentence states that Brady had never skied before, while the second sentence reveals that she performed well on the slopes, showing a surprising contrast to her lack of experience. 'Unless' implies a condition that needs to be met for a particular situation, which is not relevant here. 'Therefore' indicates a conclusion or result, which does not fit the context of the contrasting statements. 'Before' is a preposition that doesn't serve the purpose of connecting the two ideas presented in the sentences.
Nokea