The following codesnippet is used for a 4 class, classification problem. The network accepts a CSV file which contains 10,000 examples each with 250 features. [3+1+1=5] (a) Write the code for creating the model using Keras. Choose the appropriate activation functions. Include the code for configuring. training and testing the model. (b) Compute the number of parameters learned in each laver. (c) A ML engineer decided to we signoid activation function in the last layer. Do vou