Q$3.$ This question refers to the Sales Orders database in Week $2|$ Learning Materials & Resources. Write SQL queries below for each of the following. Note that I am asking for the SQL query only, not the results of that query. Here$$s an example. Question: List the entire customers table. Answer: Select $*$ From Customers

a$.$ List the names and cities of all customers

b$.$ List the different states the vendors come from $($unique values only, no duplicates$)$

c$.$ Find the number of customers in California

d$.$ List names of all employees who have sold to customer Rachel Patterson $($Note: You can only use the information given in the question, i$.$e$.$ you cannot first look up Rachel Patterson$$s Customer ID and use that ID in your query$).$