कथक पारंपरिक रूप से भारत के निम्नलिखित में से किस क्षेत्र का एक शास्त्रीय नृत्य रूप है?

In Kathak dance performance, which of the following instruments is primarily used to mark the rhythm?

In which century CE was the Sattriya dance form introduced?

Which of the following statements is true about Kathak?