An inference is a conclusion or deduction made based on evidence and reasoning rather than from explicit statements.
Among the options you provided, the following are examples of inference:
A. "think the plant needs more sunlight because it looks wilted." - This is an inference based on the observation of the plant's condition.
B. "I believe the cat is hungry because it is meowing." - This is also an inference, as the conclusion about the cat's hunger is drawn from the behavior observed.
D. "The sky is cloudy so it might rain." - This too is an inference, as the cloudy sky is used to infer a possibility of rain.
C. "The thermometer shows a temperature of 25 degrees Celsius." - This is an observation, not an inference, as it states a fact without drawing any conclusions.
So, options A, B, and D are examples of inference.