Why is the quick ratio a more appropriate measure of liquidity than the current ratio for a large-airplane manufacturer?

		It recognizes the contribution of all assets so that analysts can see how "quickly" a firm can satisfy its short-term obligations.
		It recognizes that parts can be quickly converted to cash.
		It provides a better measure of overall liquidity when a firm has highly liquid inventory.
		It is not more appropriate. The current ratio would provide better information in this situation.
		It excludes inventory from the numerator of the ratio because it is difficult to convert inventory to cash and most sales are made on a credit basis.