If third letter from the left end of each word from each group is to be considered, then which among the following group of words can make at least one 4-letter meaningful English word such that one letter to be used only once?
I. MINT, YEAR, SOAP, NAME
II. DEAF, LIMB, SPIN, CURL
III. VAIN, DEAR, LAMB, PORT
IV. WEAR, TORN, MAIN, RENT

I. MINT, YEAR, SOAP, NAME: The third letter of the given words from the left end are ‘N’, ‘A’, ‘A’, and ‘M’. No meaningful English word can be formed. II: DEAF, LIMB, SPIN, CURL: The third letter of the given words from the left end are ‘A’, ‘M’, ‘I’, and ‘R’. No meaningful English word can be formed. III: VAIN, DEAR, LAMB, PORT: The third letter of the given words from the left end are ‘I’, ‘A’, ‘M’, and ‘R’. No meaningful English word can be formed. IV. WEAR, TORN, MAIN, RENT: The third letter of the given words from the left end are ‘A’, ‘R’, ‘I’, and ‘N’. Word formed is ‘RAIN’.