Select the correct sentiment of the following review: A chemist develops a fabric that never gets dirty or wears out, but it is seen as a threat to the survival of various industries. In this delightful Ealing Studios comedy, Guinness is marvelous as the mild-mannered but persistent chemist. Greenwood, with her sensual voice, plays the love interest; Parker is her harried father. Thesiger is amusing as a patriarch of the fabric industry. While telling an engaging story, the film also raises some intriguing questions about science, the economy, and politics. It is adeptly directed by Mackendrick, who would go on to make "The Ladykillers" and the sublime "Sweet Smell of Success" later in the 1950s.
Available choices: A. negative B. positive
B.