Explanation:

The word 'लुटिया' (Lutiya) is a diminutive form, typically derived from 'लोटा' (Lota, a small metal pot). In standard Hindi morphology, the diminutive suffix used here is 'इया' (iya), which, when added to a base like 'लोट' (lot), forms 'लुटिया' (lutiya) with a vowel change. However, if option (1) 'टिया' (Tiya) is considered the correct suffix, it implies that the base word is 'लु' (lu) and 'टिया' is appended as a single unit to form the diminutive. This is a less common morphological analysis compared to 'इया' but might be considered in specific contexts or as a phonetic grouping. Options (2) 'इया', (3) 'या', and (4) 'आ' are incorrect based on the provided correct option, as 'टिया' is the complete ending identified.