He struggled up to the surface and tried to cry out, but the wash from the speeding yacht slapped him in the face and the salt water in his open mouth made him gag and strangle. Desperately he struck out with strong strokes after the receding lights of the yacht, but he stopped before he had swum fifty feet. A certain cool-headedness had come to him; it was not the first time he had been in a tight place. There was a chance that his cries could be heard by someone aboard the yacht, but that chance was slender, and grew more slender as the yacht raced on. He wrestled himself out of his clothes, and shouted with all his power. The lights of the yacht became faint and ever-vanishing fireflies; then they were blotted out entirely by the night.

Rainsford remembered the shots. They had come from the right, and doggedly he swam in that direction, swimming with slow, deliberate strokes, conserving his strength. For a seemingly endless time he fought the sea. He began to count his strokes; he could do possibly a hundred more and then—

What details from the narration show that Rainsford is a rational individual who does well in moments of danger? Select 2 options.

He struggled up to the surface and tried to cry out
Desperately he struck out with strong strokes after the receding lights of the yacht
A certain cool-headedness had come to him;
There was a chance that his cries could be heard by someone aboard the yacht
[D]oggedly he swam in that direction, swimming with slow, deliberate strokes, conserving his strength.