Active listening means the listener:
a. frequently interrupts the speaker with questions and comments.
b. completely focuses on the speaker during the delivery of the message.
c. only demonstrates good eye contact.
d. empathizes with the speaker.

b. completely focuses on the speaker during the delivery of the message.

Explanation:

Active listening refers to paying complete concentration to the message of the speaker and not just passive hearing. It enforces the dedication of all senses while listening to a message. Feedback can be provided to the speaker to make him sure that his message is being heard by making eye contact, smiling and using words like "yes" or "hmm".

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.