What is the difference between a 'hold' instruction and a 'no substitutions' instruction?

What is the difference between a 'hold' instruction and a 'no substitutions' instruction?

• A. A 'hold' means the kitchen should double ingredients.
• B. A 'hold' animates removing or omitting ingredients from the dish; 'no substitutions' means the kitchen will not alter the base recipe.
• C. A 'hold' means the dish should be served colder.
• D. A 'hold' means substitutions are mandatory.

Answer: (B)