Focal Length Not Displayed An Object Of Height 4 Cm Is Placed At A Distance Of 20 Cm From A Convex Lens Of Focal Length 10 Cm.?

An object of height 4 cm is placed at a distance of 20 cm from a convex lens of focal length 10 cm.? - focal length not displayed

find the nature of the image.

a. virtual, enlarged
b. virtual, inverted
c. real extended
d. real, inverted

across the table in my book, said that shows the only way that a convex mirror, the virtual image is reduced, which is not possible. It's just a stupid mistake of the writer, or am I missing something completely.