Awordis defined as a sequence of four dots arranged in a row. Each dot is colored either red or blue. How many distinct words can be formed? Choose the correct choice from the following.
A) 16	B) 15	C) 6	D) 18	E) 9
Each dot can be either yellow or blue, so 2 options for each dot:   2*2*2*2= 
<gadget id="calculator">  2*2*2*2</gadget>
<output>16</output>
16.   16nswer: 16.
<result>A</result>
Awordis defined as a sequence of four dots arranged in a row. Each dot is colored either red or blue. How many distinct words can be formed?