Final answer:
The gin with a 'Sapphire' variety inspired by a gemstone owned by Mary Pickford is Bombay Sapphire. Option a.
Step-by-step explanation:
The brand of gin that has a "Sapphire" variety inspired by a gemstone once owned by Mary Pickford is Bombay Sapphire. Bombay Sapphire is a well-known brand of gin that is recognized for its distinctive blue bottle and exotic blend of botanicals. Mary Pickford, for whom the gemstone and resulting beverage inspiration are named, was a famous Canadian-American film actress and one of the original founders of the motion picture industry's Academy of Motion Picture Arts and Sciences.