Which step of the scientific method involves making an inference?

draw a conclusion

Explanation:

Inference is an information-based deduction or reasoning that uses available data to reach a conclusion. To infer is to deduce a result, logically, based on the interpretation of other information. Inferencing can also mean reaching a conclusion from other perceptions or from analyzing one or more arguments.

According to this conceptualization, we can say that the only step in the scientific method where a scientist can make an inferences is the conclusion stage.

i think that c)gold was found there

but i am not sure

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.