Silicon Valley’s largest publicly funded child care agency announced Friday that it has to close three of its preschools. The embattled Community Child Care Council of Santa Clara County, known as the 4C Council, already shuttered two other centers since 2015. In an email to staff, 4Cs Executive Director Alfredo Villaseñor lamented the loss but provided no explanation for the closures. He did hint at rumors that the 45-year-old agency could fold, which contradicts his recent assertions that the ship is running smoothly. The nonprofit, funded by taxpayers to the tune of $45 million a year, is going on the fourth week of an audit by the California Department of Education (CDE). After several years of financial shortfalls, there’s a chance the state could defund 4Cs and hand the responsibility of providing low-cost child care for low-income families to another agency altogether. At a public meeting a couple of weeks ago, county Executive Jeff Smith said he’s worried about the agency’s poor fiscal health, which San Jose Inside first exposed after the CDE accidentally disclosed an internal memo about 4Cs’ mounting debt and declining revenues. “That makes us concerned as a contractor about whether they could survive,” Smith said, referring to the county’s agreement to pay 4Cs to feed senior citizens at the Northside Community Center.