When using #include, the characters ____, tell the compiler to begin searching for the included file in the C compiler system library directory.

A) ""
B) <>
C) //
D) \\

The on-delay timer (TON) starts timing when the timer's:

A) ladder rung switches from false to true.
B) ladder rung switches from true to false.
C) accumulated value equals its preset value.
D) accumulated value is greater than its preset value.

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