To come to the surface of the pool, the person in question made plans and attempted certain actions. The correct answer is option 'A', which states that he tried to jump and push himself up. Let's explore this answer in detail.

Attempted to jump and push himself up
- When someone is submerged underwater, one common instinct is to try to jump and push themselves up to reach the surface.
- This action involves using the body's muscles to generate upward force and propel oneself out of the water.
- By pushing off the bottom of the pool and using the legs and arms to generate power, the person can attempt to break through the water's surface.

It is worth noting that the other options provided are not as effective or relevant in this context.

Shouted
- Shouting while underwater may not help the person reach the surface.
- Sound does not travel well underwater, and the pressure of the water can distort or muffle the sound.
- Therefore, shouting alone may not be an effective means of attracting attention or getting help.

Cried aloud
- Crying aloud, similar to shouting, may not assist the person in reaching the surface.
- While it is a natural response to distress, crying aloud does not provide any physical means of propulsion or aid in breaking through the water's surface.

Shouted "help"
- While shouting "help" may be a valid action in a situation where someone is in distress, it does not directly contribute to reaching the surface of the pool.
- The person may hope that someone nearby hears their cries for help and comes to their aid, but it does not address the physical aspect of reaching the surface.

In conclusion, of the options provided, the most appropriate plan the person made to come to the surface of the pool was to try to jump and push themselves up. This action utilizes the body's muscles and propulsion to break through the water's surface.