The correct choice is (a) True
Easy explanation: The pipeline processes microarray data, automatically clusters genes according expression patterns, retrieves upstream sequences of coregulated genes and detects motifs using a Gibbs sampling approach (Motif Sampler). To further avoid the problem of getting stuck in a local optimum, each sequence dataset is submitted to Motif Sampler ten times. The results may vary in each run. The results from the ten runs are compiled to derive consensus motifs.