1. What are the most common ANN architectures? Forwhat types of problems can they be used?2. ANN can be used for both supervised and unsupervisedlearning. Explain how they learn in a supervised modeand in an unsupervised mode.When submitting work, be sure to include an APA cover page and include at least two APA formatted references (and APA in-text citations) to support the work this week.All work must be original (not copied from any source).