I was n't real impressed with our hotel . It 's the only hotel where Ihad real problems with the hot water . It took forever for the water at thesink to get hot , and the water in the shower seemed to run out . It wasreally strange .

Generate a question about the above context.
What caused the hotel to have hot water problems ?

[1]. None of the above choices .
[2]. The hotel is currently upgrading its water heater .
[3]. The hotel lacked a sufficiently sized water heater .
[4]. The hotels pipes are not well insulated .