In which of the following sentence 'corelative conjunction' is used?

যেসব conjunction জোড়ায় জোড়ায় ব্যবহৃত হয় তাদের corelative conjunction বলে।
যেমন - As ... as, so ... as, both ... and, either ... or, neither .... nor, not only .... but also ইত্যাদি।

She not only ate the salmon but also drank champagne. - এই sentence এ 'not only .... but also' corelative conjunction ব্যবহৃত হয়েছে।