The correct option is (c) catheter
Explanation: Catheter is a hollow, flexible tube. It is used in minimal invasive surgery where a small slit is made and then the catheter is inserted. This catheter is flexible and can be controlled by the person performing the surgery. Since its hollow, micro instruments can be inserted in it and operations can be performed. Catheter is used to inject the dye in the desired place as the catheter is inserted in a convenient place and then positioned accordingly to inject the dye.