Table 4.4.2 -Refer to Table 4.4.2.An Economy Produces Only Digital Cameras, Chocolate

Table 4.4.2
-Refer to Table 4.4.2.An economy produces only digital cameras, chocolate bars, and watches.The table gives the quantities produced and prices in 2017 and 2018. The base year is 2017.
The chained- dollar real GDP in 2018 is

A) $147.
B) $36.
C) $25.
D) $109.
E) $34.