When Johnny's parents saw the report, they were happy because _______. prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
A.
Johnny was good at math prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
B.
Johnny loved computers prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
C.
Johnny could join one computer to another prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>
D.
they thought Johnny was not poor in English any longer prefix="o" ns="urn:schemas-microsoft-com:office:office" ?xml:namespace>