I’m pretty sure you times them so 1 with A, 2 with e, 3 with C, and 4 with B
A pulsar, or a pulsing star, is a highly magnetized neutron star that emits a beam of electromagnetic radiation. So they blink when they are rotating because the beam of radiation they emit can only be seen when it is facing the Earth.
Hope this helps.
Particle with more energy move SLOWER than particles with less energy.
Answer:
Keep going you are doing great, if you need a break go take a short walk