单项选择题

Given the following LSP configuration， which statement is true？（）
label-switched-pathlsp-xyz {
to 10.2000.1.1；
primarypath1；
secondarypath2；
secondarypath3；
no-cspf；
}
pathpath1 {
10.200.10.1 strict；
}
pathpath2 {
10.200.20.1 strict；
}
pathpath3 {
10.200.30.1loose
}

A.The router will use path1 when it is available and stable.
B.The router will use path3 when it is available and stable.
C.The router will attempt to establish path2 only when path1 and path3 are down.
D.The router will attempt to establish path1 only when path2 and path3 are down.

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Given the following LSP configuration， which statement is true？（） label-switched-pathlsp-xyz { to 10.2000.1.1； primarypath1； secondarypath2； secondarypath3； no-cspf； } pathpath1 { 10.200.10.1 strict； } pathpath2 { 10.200.20.1 strict； } pathpath3 { 10.200.30.1loose }

Given the following LSP configuration， which statement is true？（）
label-switched-pathlsp-xyz {
to 10.2000.1.1；
primarypath1；
secondarypath2；
secondarypath3；
no-cspf；
}
pathpath1 {
10.200.10.1 strict；
}
pathpath2 {
10.200.20.1 strict；
}
pathpath3 {
10.200.30.1loose
}