For Poussin, the principals of the Grand Manner were: A. concerned with inventing new styles and methods.
B. very rigid and strictly defined.
C. somewhat vague and subject to interpretation.
D. influenced entirely by the present historical moment and had little
concern for the past.

B. very rigid and strictly defined.

Explanation:

The answer is B just trust me, me and my cousin found the answer and it's B so your answer is B

for those of you who searched "which list includes four types of animal-like protists? " and keep getting these results, the answer is c: flagellates, sarcodines, ciliates, parasites