Are you the parent or the student? Have you already asked your math, science and history teachers for LOR? If not, it might be a little late to ask now. Are they all 11th grade teachers?
Are you still planning on applying test optional? If so, I would lean toward a science teacher first. If not then choose a teacher who can speak about what type of student you are in the classroom. Do you participate? Take the lead? Are you collaborative? Do you ask questions? Are you hard working? Do your peers respect you?