Question 4 (3 points) Consider a multilevel computer in which all the levels are different. Each level has instructions that are m times as powerful as those of the level below it; that is, one level rinstruction can do the work of m level r - 1 instructions. If a level-1 program requires k seconds to run, how long would equivalent programs take at level 4, assuming n level rinstructions are required to interpret a single r + 1 instruction? O k*(n/m)^2 k* (n/m) k"(n/m^3 Ok*(n/m)^4 Question 5 (3 points) Consider a computer with identical interpreters at levels 1, 2, and 3. It takes an interpreter n instructions to fetch, examine, and execute one instruction. A level-1 instruction takes k nanoseconds to execute. How long does it take for an instruction at level 3? O k*(n^2) Okin k (n^3) Okn^4)