Write a function called mock. mock should take one #parameter, a string. you may assume that the string will #have only lowercase letters and spaces. # #your function should return the same string, but any letter #at an even index should be converted to uppercase. # #for example: mock("abcd efgh ijkl") would return #"abcd efgh ijkl". # #remember, you can use the ordinal function ord() to get the #number associated with a single letter. for example, #ord("a") returns 97. the number associated with lowercase #letters is always 32 larger than the number associated with #the equivalent uppercase letter. ord("a") is 97, and #ord("a") is 65. ord("z") is 122, and ord("z") is 90.