<prompt> Breast cancer mainly spreads to the veebraeAerial routeDirect InvasionBatsons venous plexusVia Axillary lymph nodes  <response>: Answer- C. Batsons venous plexusMetastasis of breast cancer to bone, and especially to thoracic veebrae, is common due to the direct connection between the intercostal veins draining the breast and the internal veebral plexus ako known as Batsons plexus. 