Among the root beers sold in bottles, how many are sold at the location 38.559615, -121.42243?
in bottles refers to ContainerType = 'Bottle';  location 38.559615, -121.42243 refers to latitude = 38.559615 AND longitude = -121.42243;
SELECT COUNT(T4.BrandID) FROM `transaction` AS T1 INNER JOIN geolocation AS T2 ON T1.LocationID = T2.LocationID INNER JOIN location AS T3 ON T1.LocationID = T3.LocationID INNER JOIN rootbeer AS T4 ON T1.RootBeerID = T4.RootBeerID WHERE T2.Latitude = 38.559615 AND T2.Longitude = -121.42243 AND T4.ContainerType = 'Bottle'