Answer: Under copyright laws, the protection for Mary Beth's work will be for 70 years.
Step-by-step explanation:
Copyright is referred to as the exclusionary authority given to an individual i.e. the creator of an art or work in order to reproduce the similar work, whereby this can be done for a limited time period. This work is mostly in literary, educational, artistic, or even musical form. The copyright is most commonly designed in order to protect and serve the original aspect of a notion in form of creative work.