For the Sake of Simplicity and by Convention,price Elasticity Figures

Multiple Choice

For the sake of simplicity and by convention,price elasticity figures are shown as

A) positive numbers (0.64,1.25,etc. ) .
B) negative numbers (−0.64,−1.25,etc. ) .
C) Greek letters (∑,∏,etc. ) .
D) Roman numerals (I,V,X,etc. ) .
E) English consonants (P,Q,TR,etc. ) .