Ethylene Glycol is oxidized into carboxylic acid by?

Per iodic acid

Lead tetra acetate

Acidified KMnO₄

Both (A) & (B)

Ethylene glycol (HOCH2CH2OH) is a 1,2-diol, and both periodic acid (HIO4) and lead tetraacetate (Pb(OAc)4)

They are strong oxidizing agents capable of cleaving the carbon-carbon bond between the adjacent hydroxyl groups in a glycol

Resulting in the formation of carboxylic acids. In the case of ethylene glycol, this would yield oxalic acid (HOOC-COOH).