Correct

放毒

/ fàngdú / 
Strokes

Definition

to poison/fig. to spread vicious rumors

Example

As a Verb

put poison in (food, water, etc); poison

1
Gěi
给
gǒushí
狗食
zhōng
中
fàngdú
放毒

poison a dog's food

As a Verb

make vicious remarks; spread poisonous/harmful ideas

2
Xiàng
向
qīngshàonián
青少年
fàngdú
放毒

corrupt the youth with evil propaganda