Read the brief letter. dear grandma i will be visiting uncle monte and aunt judy in washington next week. they have been invited to attend the opening of a new museum. more than 3,500 other people from around the world have been invited to attend! i will be sure to send you some pictures. love erin which revision is needed to punctuate the letter correctly? add a comma before and after dear and grandma. delete the comma in 3,500 and add a comma after erin. delete the comma in 3,500 and add a comma after love. add a comma after dear grandma and after love. description