Using the Example in Question 1 Above, Which politeness Strategy

Using the example in question 1 above, which politeness strategy would Bernice be using if she had instead said to Tamara, " You are always so considerate, so I know that you will get the DVD's back as soon as you have watched them."

A) neutral politeness
B) negative politeness
C) positive politeness
D) going off-record
E) bald on-record