19. Read each sentence, and decide whether the underlined portion contains a mistake. If it does, identify the best way to correct or improve the sentence by choosing the appropriate suggestion from the answer choices provided. If the underlined portion requires no correction or improvement, choose No improvement or correction is required.

In autumn crisp weather and sunny weather is ideal.
(Points : 2)
crisp weather that is also sunny weather

crisp, sunny weather

crisp while also being sunny weather

weather that is crisp and also sunny

No improvement or correction is required.