What is the relationship between 'Vodafone' and 'Vodafone India' in the context of the input sentence.
Options: chief executive officer, stock exchange, subsidiary, headquarters location

Vodafone has benefited from the intra-circle MNP that was rolled out in 2011 and we look forward to a similar response this time," Vivek Mathur, chief commercial officer, Vodafone India said.
subsidiary