Step 1: Instead of picking one method, check whether each technique actually measures water entering the soil over time. The infiltrometer directly records the fall in ponded water depth inside a ring, giving a point infiltration rate.
Step 2: The large basin method extends this same idea to a bigger ponded area, tracking how much the free water surface subsides, useful for basin or border irrigation design.
Step 3: The water front advance method instead watches how quickly the wetting front moves along a furrow and back-calculates the accumulated infiltration from that advance and recession data, which suits furrow irrigation design.
Since all three approaches genuinely estimate infiltration, none can be excluded.
\[\boxed{\text{(A), (B) and (C)}}\]