Lynn is looking for a synonym to use in her essay, so she opens the thesaurus. She looks up the following entry.

delay v. 1. Storms delayed the construction process. curb, detain, hamper, hinder, hold. 2. He delayed his admission until he got back from Europe. postpone, hold, put off, shelve. 3. Don’t delay, the sale is almost over. hedge, hang back, hesitate, pause, stall

Lynn wants to write a piece that encourages students to express the concerns to the principal without delay. Which would be the BEST synonym to use in her piece?