When to bindTexture with manual mipmaps

Question

When setting mipmap levels for a texture manually, which is the correct strategy for where to loop on each level?

note: I'm assuming gl.createTexture() definitely falls outside the loop

OPTION A

1. gl.bindTexture(bindTarget, texture);
2. gl.texParameteri();
3. For each mipmap level:
   • gl.texImage2D();

OPTION B

1. gl.bindTexture(bindTarget, texture);
2. For each mipmap level:
   • gl.texParameteri();
   • gl.texImage2D();

OPTION C

1. For each mipmap level:
   • gl.bindTexture(bindTarget, texture);
   • gl.texParameteri();
   • gl.texImage2D();

Answer 1

texture parameters are for the entire texture not per mip level so option a.

It kind of seems like you could derive that given that those parameters help choose whether or not mips are used at all.