Who does the costume designer collaborate with to ensure a cohesive visual style?

a
The scenic designer
b
The lighting designer
c
The sound designer
d
All of the above

d) All of the above.

The costume designer collaborates with the scenic designer, lighting designer, and sound designer to ensure a cohesive visual style. These design elements, including costumes, sets, lighting, and sound, work together to create a unified and harmonious production. Therefore, it is essential for all designers to collaborate and coordinate their designs to ensure they complement each other and contribute to the overall artistic vision of the production.