What Did Galileo See When He Observed Venus Through His

Multiple Choice

What did Galileo see when he observed Venus through his telescope?

A) Venus has phases like the Moon and has its largest angular diameter at gibbous phase.
B) Venus has an angular size that increases and decreases markedly,but it does not show phases (e.g. ,crescent,gibbous) .
C) Like the Moon,Venus shows phases,and its angular size remains almost constant.
D) Venus has phases like the Moon and has its largest angular diameter at crescent phase.