We must decide ________ to proceed today __________ postpone the event.Awhether – orBrather – thanCnot only – but alsoDboth – andAnswer: A. whether – or Read Explanation: Whether … or is a correlative conjunction used to connect two alternatives or choices.Basic structureWhether + option 1 + or + option 2StructureExamplewhether + verb + or + verbWe must decide whether to proceed or postpone.whether + noun + or + nounI don't know whether tea or coffee is better.whether + clause + or + clauseTell me whether you will come or you will stay. Read more in App