Which of the following step is going to instantiate a product collection?

  • $collection = Mage::getModel(‘catalog/product’)->getProduct();
  • $collection = Mage::getModel(‘catalog/product’)->getCollection();
  • $collection = Mage::getModel({‘catalog/product’})->getCollection();
  • $collection = Mage::getModel(‘catalog/product’)—>getCollectionId();