Which of the following was the immediate cause of the sepoy rebellion

The immediate cause of the Sepoy Rebellion were British social reforms, harsh land taxes and heavy skepticism of about the benefits of having the British ruling India in the first place. It was an uprising that attempted to put Bahadur Shah Zafar as emporer of India instead of having the British East India Company ruling.

yes, there are senators in each state

the triple alliance. germany and austria-hungary were already allies by 1879 when, worried about a threat from russia, they formed the dual alliance. italy joined the group in 1882. there was a concern about a possible attack from france and the alliance needed powerful friends to defend it.