Get CRM PickList & Global OptionSet using c#

using System.ServiceModel.Description;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Query;
using Microsoft.Xrm.Sdk.Messages;
using Microsoft.Xrm.Sdk.Metadata;

Uri OrganizationUri = new Uri(System.Configuration.ConfigurationManager.AppSettings["CRM_Organization_URI"].ToString());
Uri HomeRealmUri = null;
Dictionary<String, String> dicState = new Dictionary<String, String>();
Dictionary<String, String> dicSuffix = new Dictionary<String, String>();