Questions 19 to 22 are based on the conversation you have just heard.

What is the man interested in?（）

A．Limited driving range.
B．The short life of batteries.
C．Huge recharging expenses.
D．The unaffordable high price.

A、allowing
B、avoidable
C、briefly
D、component
E、determined
F、helping
G、increasingly
H、lowest
I、maintain
J、maximum
K、prevent
L、principle
M、provoke
N、seriously
O、topic