Congratulations on your __________ I know you will be awesome in your new position.
Which of the following options correctly completes the sentence above?

Question

Quizplus · Accepted Answer

There are two sentences above, one of which is missing punctuation.
When punctuating the end of a sentence, you have three options: a period (.), a question mark (?), or an exclamation point (!).
End a sentence with a period when it is a statement.
I was confused about how to order my lunch at the new restaurant. 
Use a question mark to end a sentence when it is asking a question.
What is your favorite thing on the menu?
Sentences that show excitement, surprise, or another strong emotion can be ended with an exclamation point.
I can't believe he just stormed off like that!
In this example, you cannot have more than one end punctuation mark at the end of a sentence.

Congratulations on Your __________ I Know You Will Be Awesome