Final answer:
The statement is false because free verse does not follow a regular meter or a rhyme scheme, whereas the description given refers to blank verse.
Step-by-step explanation:
The statement that Edward Sill's "Opportunity" is an example of free verse, or poetry that contains five iambic feet per line but does not rhyme, is false.
Free verse is a form of poetry that does not adhere to a regular meter, such as iambic pentameter, nor does it require a rhyme scheme. This contrasts with blank verse, which does use iambic pentameter but does not rhyme. Therefore, if a poem contains five iambic feet per line and does not rhyme, it is an example of blank verse, not free verse.