Explanation:

- Cacographer: This word refers to someone who is bad at spelling or has poor handwriting. Correct Answer: This is the one-word substitute for someone who is bad in spellings.

- Photographer: A person who takes photographs, typically as a profession. This option is unrelated to spelling skills.

- Choreographer: A person who creates and arranges dances, usually for performances or productions. This term is linked to dance, not spelling.

- Chauvinist: Someone who displays excessive or prejudiced loyalty or support for their own cause, group, or sex. This term has no relation to spelling abilities.

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