Consider below info to be a table:
AMOUNT OF BACTERIA
TIME - AMOUNT
1PM - 10gms
4PM - x gms
7PM - 10.0 gms
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same factor during each of the two 3-hour periods shown, how many grams of bacteria were present at 4PM ?  Choose the most appropriate option:
A) 12.0
B) 12.1
C) 10.0
D) 12.3
E) 12.4
let say the factor is x, the at 7PM quantity = 10 (i.e. quantity @1PM)* x^2 =10.0 =&gt; x^2 =1.00 or x = 1.0 =&gt; @4PM quantity = 10x =10*1.0= 
<gadget id="calculator">10*1.0</gadget>
<output>10</output>
10.   Answer 10.0
<result>C</result>
Consider below info to be a table:
AMOUNT OF BACTERIA
TIME - AMOUNT
1PM - 10gms
4PM - x gms
7PM - 10.0 gms
Data for a certain biology experiment are given in the table above. If the amount of bacteria present increased by the same factor during each of the two 3-hour periods shown, how many grams of bacteria were present at 4PM ?