$SiF_4$ gets hydrolysed giving .......

Which of the following statements is correct with respect to the property of elements with an increase in atomic number in the carbon family (group $14$)?

Given below are two statements:
Statement $I$ : $SiO_2$ and $GeO_2$ are acidic while $SnO$ and $PbO$ are amphoteric in nature.
Statement $II$ : Allotropic forms of carbon are due to property of catenation and $p \pi-d \pi$ bond formation.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which of the following is an amphoteric oxide?

$SiCl_4$ on hydrolysis gives:

Which of the following oxides is amphoteric?