Which statement is true?

Only some squares are rhombuses. Rhombuses have 4 right angles. Therefore, only some squares have 4 right angles.

All squares are rhombuses. Rhombuses have 4 sides that are the same length. Therefore, all squares have 4 sides that are the same length.

All squares are rhombuses. Rhombuses have 4 right angles. Therefore, all squares have 4 right angles.

Only some squares are rhombuses. Rhombuses have 4 sides that are the same length. Therefore, only some squares have 4 sides that are the same length.