What statement is true？（）
A. The code will compile without changes.
B. The code will compile if public Tree（）{Plant（）；} is added to the Tree class.
C. The code will compile if public Plant（）{Tree（）；} is added to the Plant class.
D. The code will compile if public Plant（）{this（"fern"）；} is added to the Plant class.
E. The code will compile if public Plant（）{Plant（"fern"）；} is added to the Plant class.
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Refer to the exhibit. The Saratoga Softball League is setting up Call Transfer for its Cisco Unified CallManager Express solution, which uses version 4.0. The network supports the H.450 standards. What will be used to execute the transfer? （）
A. Tcl script
B. hairpin routing
C. h.450.2 standard
D. h.450.3 standard
E. proprietary Cisco method
Which two code fragments， inserted independently at line 12， will compile？（）
A. super（name， baseSalary）；
B. this.commission=commission；
C. super（）；this.commission=commission；
D. this.commission = commission；super（）；
E. super（name， baseSalary）；this.commission=commission；
F. this.commission=commission；super（name， baseSalary）；
G. super（name， baseSalary， commission）；
Refer to the exhibit. The Major Butler PR Service has a home-office worker, Mr. Cuyler, who is attached to its voice network. Which three dial peers must be correctly reconfigured to allow those attached to Router A to be able to call Mr. Cuyler?（）
A. Router A: dial-peer voice 1 pots
B. Router A: dial-peer voice 1000 voip
C. Router T1: dial-peer voice 1 voip
D. Router T1: dial-peer voice 1 pots
E. Router T2: dial-peer voice 1000 pots
F. Router T2: dial-peer voice 9999 pots
Oracle Net Services is composed of several communication layers， known as a stack，which enables clients and database severs to share，modify，and manipulate data. Which reveals the correct architecture，in hierarchical order，of the client-side stack？（）
A
B
C
D
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