Topic: Word Meaning, Subject: English Grammar (ইংরেজি গ্রামার)

Best Answer Explained in Below-:

The phrase "bank on" is an idiomatic expression that means to rely on or depend on something or someone for support or fulfillment. In the context of the sentence "You can't bank on the support of this neighbor of yours," the speaker is conveying a sense of uncertainty regarding the neighbor's reliability or willingness to provide assistance.

Let's analyze the options provided:

A) "ask for" implies an active request for help, which doesn't align with the idea of relying on someone.
B) "appeal to" suggests seeking help or support, but it does not capture the essence of relying on someone who may or may not provide that support.
C) "ignore" directly contradicts the notion of depending on someone, as it involves disregarding them entirely.
D) "depend on" accurately reflects the meaning of "bank on," as it conveys reliance on another party's assurance or action.

Therefore, "depend on" is the correct choice, as it embodies the central idea of trust and reliance indicated in the original sentence, emphasizing the potential disappointment in not being able to count on one's neighbor for support.