Amazon has been collecting review data for a product. They have realized that almost $90\%$ of the reviews were mostly a $\frac{5}{5}$ rating. However, of the $90\%,$ they realized that $50\%$ of them were customers who did not have proof of purchase or customers who did not post serious reviews about the product. Of the following, which is true about the review data collected in this situation?

A$.$ High Valence

B$.$ Low Volume

C$.$ High Veracity

D$.$ Low Veracity

E$.$ Low Valence

F$.$ High Volume

As mentioned in the slides, what are the challenges to data with a high valence?

A$.$ Complex Data Exploration Algorithms

B$.$ Difficult to Integrate

C$.$ Reliability of Data

Which of the following are the $6V\text{'}$s in big data?

A$.$ Volume

B$.$ Vision

C$.$ Variety

D$.$ Valence

E$.$ Value

F$.$ Velocity

G$.$ Veracity