(a) A metal fork weighs about 4 grams (\( \text{g} \)). \(\boxed{4 \, \text{g}}\)
(b) Deshaun's finger is about 2 inches (\( \text{in} \)) long. \(\boxed{2 \, \text{in}}\)
(c) Today, Latoya drank a total of 6 ounces (\( \text{oz} \)) of water. \(\boxed{6 \, \text{oz}}\)