Despite their fervent excitement prior to the election, the majority of voters had a tepid reaction to the news that their candidate had been elected. In which of the following sentences does tepid have the same meaning as in the sentence above?

The instructions for the experiment stated that the tepid solution should be heated slowly until it reached the boiling point.
Ecologists discovered that the river contained tepid water because it was warmed by the nearby lava flow.
Employees had a tepid reception to new regulations which would protect their jobs but require them to work more hours.
The university president’s remarks on student achievement were met with tepid silence from his opponents on the board of trustees.
The orthodontist instructed the patient to eat only tepid foods for a month to avoid irritating her sensitive gums.