49ers’ Beathard explains his ‘wrong’ choice on late-game INT

San Francisco 49ers quarterback C.J. Beathard (3) before an NFL football game against the Green Bay Packers Monday, Oct. 15, 2018, in Green Bay, Wis. (AP Photo/Matt Ludtke)

San Francisco 49ers quarterback C.J. Beathard (3) before an NFL football game against the Green Bay Packers Monday, Oct. 15, 2018, in Green Bay, Wis. (AP Photo/Matt Ludtke)

Photo: Matt Ludtke / Associated Press

Kyle Shanahan was blunt Monday night when asked about the C.J. Beathard’s late-game interception in the 49ers’ 33-30 loss at Green Bay.

On 3rd-and-3 from the Packers’ 46-yard line, Beathard lofted a deep pass to wide receiver Marquise Goodwin and it was intercepted by cornerback Kevin King. The Packers rushed seven…