To determine the approximate number of monarch butterflies the gardener will count this year, we need to consider the overall population trend of monarch butterflies over the past twenty years. Unfortunately, without specific data indicating whether the population has increased, decreased, or remained stable, I cannot provide a precise estimate.
However, based on widespread reports of declining monarch butterfly populations, if we assume a decrease, it could be reasonable to estimate a smaller number. For example, if the population had decreased significantly, a count around 10 might be plausible.
If we look at the options provided:
- 10
- 100
- 20
- 50
Without specific population data, the most sensible selection based on the general trend of declining populations would be 10.