Assume a b+-tree's node may contain up to 10 pointers, which of the following description about the b+-tree's nodes can not be true:
a.
a leaf node has 4 search key values.
b.
a leaf node has 5 search key values.
c.
an internal node has 4 search key values.
d.
an internal node has 5 search key values.

Solve the following javafx application: write a javafx application that analyzes a word. the user would type the word in a text field, and the application provides three buttons for the following: - one button, when clicked, displays the length of the word.- another button, when clicked, displays the number of vowels in the word.- another button, when clicked, displays the number of uppercase letters in the word(use the gridpane or hbox and vbox to organize the gui controls).