Which is a more effective way to improve your spelling? memorizing rules or frequent reading

Frequent reading

Explanation:

Both memorizing spelling rules and frequent reading will help you improve your reading. However, it is difficult to remember all of the rules. Some rules like "i" before "e" except after "c" are easy to remember, but there are some exceptions to the rule. By reading frequently, you will become familiar with how words are spelled from seeing them written often.

- the heat nearly killed them that first summer.