ParallelCombine[f, h[e1, e2, ...], comb] evaluates f[h[e1, e2, ...]] in parallel by distributing parts of the computation to all parallel kernels and combining the partial results with comb. ParallelCombine[f, h[e1, e2, ...]] is equivalent to ParallelCombine[f, h[e1, e2, ...], h] if h has attribute…