Answer:
A. On the independent clause
Explanation:
The question above presents a complex sentence, which is the sentence formed by a dependent clause and an independent clause. The dependent clause is one that cannot have a coherent meaning on its own. In the sentence above, this clause is "Although she's late to meetings."
The independent clause, on the other hand, is one that manages to convey a coherent meaning even alone. In the sentence shown above, this clause is "she always contributes good ideas," which is also the point of greatest emphasis in the sentence, where the main point of the sentence is presented. In this case, we can affirm that the emphase of the sentence is presented in the independent clause.