Final answer:
The accurate percentage of US households owning at least one pet as of 2010 is 62.4%, which is not listed in the provided answer options.
Step-by-step explanation:
As of 2010, 62.4% of households in the US own at least one pet. The options provided do not include this percentage, so it appears there may be a discrepancy between the information provided and the answer options. Pets are often considered part of the family in many households and understanding pet ownership can reflect various social and economic factors.