Anto is eight years old, tom is nine, and john is ten. john is the…..

Jawaban:

oldest

Penjelasan:

Ini soalnya degree of comparison ya semacam perbandingan. Anto 8 tahun, Tom 9 tahun, John 10 tahun. John yang… disini bisa dilihat umur John paling tua, jadi pake superlative degree of comparison "oldest" (tertua/paling tua)