Answer:
B. the casting director.
Explanation:
Since George is a producer who wants to make a movie and he has a script but has trouble or difficulty in selecting the right side actors for a few roles. To resolve this challenge, George should approach the casting director for help.
A casting director can be defined as an individual who is primarily saddled with the responsibility of selecting and matching actors, dancers, side actors, singers with specific roles or part in scripts of a movie. A casting director normally functions in the pre-production process of a movie and are expected to work closely with the producer and director so as to understand their requirements.
There are different factors taken into consideration in production process. The statement that best justifies the use of the proposed modification as a way of creating an appropriate control for the investigation is that;
- The experiment can be repeated without the use of guaiacol, which will therefore show the effect of guaiacol on the reaction rates.
Oxygen is an element that exist naturally and can also be produced from different kinds of materials. This is often done by using a lot of different methods.
The natural method of getting oxygen is through photosynthesis where plants are known to use sunlight to convert carbon dioxide in the air into oxygen.
By not using guaiacol again when repeating the same experiment, one can therefore know if the guaiacol in one or different ways affect the chemical reaction of the elements.
Learn more about Oxygen gas Production from
brainly.com/question/17584736
