Answer:
a. remain stable over time
Step-by-step explanation:
Hardy-Weinberg law -
It states that , if there is no evolutionary influence like the mate choice , population bottleneck , sexual mutation , etc and the conditions are ideal in a population , then the gene and allele frequencies in that particular population remain constant from generation to generation .
Hence , from the options given in the question , the correct answer is ( a ) remain stable over time .