16. 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.

To bake a delicate soufflé, you must be patient, and have gentleness and courage.
(Points : 2)
you must have patience, gentleness, and courage.

you must have patience, gentleness, and a sense of being full of courage.

you must have patience, gentle, and courage.

you must have patience, be gentle, and courage.

No improvement or correction is required.