Which one of the following word pairs has an incorrectly spelled second word? You need only concentrate on whether it should be 'i' or 'y'.

1. If a word ends in a 'consonant + y', change the 'y' to 'i' when adding an ending, e.g. 'cry-cries', 'merry-merrier/merriest', 'hurry-hurried'
2. The final 'y' does not change to 'i' when adding the ending '-ing', e.g. 'cry-crying'
3. If a word ends in a 'consonant + y', change the 'y' to 'ies' when forming the plural, e.g. 'baby-babies', 'lady-ladies'
4. The letter 'y' is normally used at the end of English words instead of 'i'