Which of the following statements is true?
(a) Polyethylene films have a good heat-sealability
(b) Polyvinylidene chloride films are gas and water vapor impermeable
(c) Nylon films have high physical strength
(d) All of the mentioned
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I'm obligated to ask this question of Principles of Refrigerated Gas Storage of Foods-2 topic in section Food Preservation, Principles of Fresh Food Storage, Principles of Refrigerated Gas Storage of Foods and Principles of Food Freezing of Food Engineering