The correct answer is (c). The opening match of Cricket World Cup-2023 was played between England and New Zealand at the Oval in London on October 13, 2023. England won the match by 5 wickets.
Option (a) is incorrect because Australia and England did not play each other in the opening match of Cricket World Cup-2023.
Option (b) is incorrect because Australia and New Zealand did not play each other in the opening match of Cricket World Cup-2023.
Option (d) is incorrect because England and South Africa did not play each other in the opening match of Cricket World Cup-2023.