The Yale Program on Climate Change Communication surveyed $911$ American adults in May of $2020$ and asked them about their attitudes on global climate change.$$ Here's a display of the percentages of respondents choosing each of the major alternatives offered to account for global warming. List the errors in this display.

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Part $1$

Select all that apply.

A$.$

The percentages do not sum to$100\%.$

B$.$

There is no title.

C$.$

Showing the pie chart on a slant violates the area principle.

D$.$

The units for each group are different.

E$.$

The responses are not categorical variables.