who was the first king to unite the franks under one rule

1. Clovis I
2. Charles Martel
3.Charlemagne
4. Otto I

MOD NOTE: Please do not give away the answer directly. Low-effort and/or plagiarized answers will be removed.

Question

who was the first king to unite the franks under one rule

1. Clovis I
2. Charles Martel 
3.Charlemagne 
4. Otto I

MOD NOTE: Please do not give away the answer directly. Low-effort and/or plagiarized answers will be removed.

Vocaloid · Answer

if you don't remember, you can simply look up "first king to unite the franks under one rule"

to help jog your memory, I'll eliminate Otto I (wasn't a king of the franks) and Charles Martel (who wasn't a king)