Help!! what is the answer?

Which statement about landscaping by thomas cole, vincent van gogh, shen zhou, and ansel adams are true? choose all answers that are correct. a. adams manipulated values in his photographs to capture how he felt about a landscape. b. cole made realistic landscapes that lack symbolic or moralistic meaning. c. shen used expressive brushstrokes to build up objects and used washes to fill larger areas. d. van gogh used intense color, bold brushwork, and distorted forms to express his emotions.

(i think my answer is a, am i correct? ) a pentagonal traffic sign is a sign. a. school crossing b. parking c. wrong way d. yield

Which of the following is an indicator that scallops are done? a. they turn milky white. b. they become transculent. c. the shells open. d. they separate easily into segments.