Problem $1$ Below is Figure $10\mathrm{.}3$ from the textbook for a system of $5$ identical classical particles with $6$ total units of energy.

a$)$ Explain in words why the multiplicity of Macrostate A is $5.$ I don't want a calculation, just a one sentence explanation of the multiplicity for that state.

b$)$ If you select a particle at random, the probability that the particle will have $1$ unit of energy is $0\mathrm{.}267.$ Show how to calculate this probability.

c$)$ If the particles are electrons instead of classical particles, the probability of selecting a particle with $1$ unit of energy is $0\mathrm{.}333.$ Show how to calculate this probability.