Consider the following argument:

Harriet will grill steaks for her guests on Saturday. She could grill steaks or make a vegetable pasta. She will only make a vegetable pasta if one of her guests is a vegetarian. Vinny is a vegetarian, but he could not attend Harriet's party.

Which of the following tacit premises does the argument rely upon?

None of Harriet's guests is a vegetarian

Harriet has run out of pasta

Vinny and Harriet are friends

Harriet likes to grill steaks

Good weather is predicted for Saturday