The financial advisor warned that pouring money into volotile stocks without proper research could seriously affect long term savings.

In the following sentence, four words have been highlighted which may be misspelt or inappropriate in their usage. Mark the erroneous word as the answer and if all the words are correct in their spellings and usage, choose ‘All are correct’ as the correct answer.

The correct answer is volotile.

Let's analyze the highlighted words in the given sentence step-by-step to identify any spelling or usage errors:

1. advisor: Correctly spelled. It refers to a person who gives advice, particularly in financial matters in this context.
2. pouring: Correctly spelled and used appropriately in the context of investing or spending large amounts of money ("pouring money").
3. volotile: Misspelt. The correct spelling is volatile (with an 'a' instead of an 'o' in the middle). It means subject to rapid and unexpected changes, especially in financial markets.
4. affect: Correctly spelled and used. As a verb, "affect" means to have an influence on or make a difference to (in this case, "affect long term savings").

Therefore, the word with the spelling error is volotile (correct spelling: volatile).