Multi-choice problem: Continue writing the next sentence in this paragraph:

How to seal a leaking radiator
Look for a rise in the temperature gauge.
Your radiator dissipates heat to help maintain the optimal operating temperature for your vehicle's engine. A leak in your radiator will result in lost coolant, which will compromise the system's ability to reduce that temperature.

Pick your answer from:
(1). If you notice a rise in the temperature gauges, consider sealing the engine shut to optimize the protection and efficiency of your vehicle while in operation. These rise in temperature gauges indicate that the engine's intake rises and lowers..
(2). Your radiator needs to be tested periodically to maintain ideal operating temperature. During service and operation, a radiator burns a lot of heat which will easily lower the temperature of your vehicle..
(3). When your coolant system begins to fail, the temperature gauge on your dash board will climb. If your vehicle has been running consistently warmer or if you have recently begun having issues with overheating, you may have a leak in your radiator..
(4). Compare your radiator's temperature gauge with the following indications : Your radiator is thickest for the hottest part of the year. Your radiator is mushy for the coldest part of the year..
(3).